結果

問題 No.888 約数の総和
ユーザー mnznmnzn
提出日時 2020-05-07 02:28:54
言語 C#(csc)
(csc 3.9.0)
結果
AC  
実行時間 62 ms / 2,000 ms
コード長 4,897 bytes
コンパイル時間 945 ms
コンパイル使用メモリ 67,776 KB
実行使用メモリ 22,800 KB
最終ジャッジ日時 2023-09-16 07:40:58
合計ジャッジ時間 4,826 ms
ジャッジサーバーID
（参考情報） 		judge13 / judge12
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 58 ms
20,756 KB
testcase_01 AC 57 ms
20,752 KB
testcase_02 AC 57 ms
22,800 KB
testcase_03 AC 57 ms
22,736 KB
testcase_04 AC 58 ms
20,800 KB
testcase_05 AC 57 ms
22,784 KB
testcase_06 AC 57 ms
20,692 KB
testcase_07 AC 58 ms
20,752 KB
testcase_08 AC 57 ms
20,688 KB
testcase_09 AC 58 ms
20,768 KB
testcase_10 AC 57 ms
20,704 KB
testcase_11 AC 58 ms
20,768 KB
testcase_12 AC 58 ms
22,736 KB
testcase_13 AC 57 ms
20,736 KB
testcase_14 AC 57 ms
20,692 KB
testcase_15 AC 57 ms
20,712 KB
testcase_16 AC 58 ms
22,672 KB
testcase_17 AC 57 ms
20,696 KB
testcase_18 AC 57 ms
20,684 KB
testcase_19 AC 58 ms
20,620 KB
testcase_20 AC 58 ms
18,680 KB
testcase_21 AC 59 ms
22,672 KB
testcase_22 AC 58 ms
20,752 KB
testcase_23 AC 58 ms
20,736 KB
testcase_24 AC 59 ms
22,780 KB
testcase_25 AC 57 ms
20,868 KB
testcase_26 AC 58 ms
20,756 KB
testcase_27 AC 62 ms
22,752 KB
testcase_28 AC 59 ms
20,696 KB
testcase_29 AC 60 ms
22,724 KB
testcase_30 AC 58 ms
20,752 KB
testcase_31 AC 57 ms
20,756 KB
testcase_32 AC 58 ms
18,568 KB
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ソースコード

diff # 

using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Linq;

class Program
{
    static void Main(string[] args)
    {
        var sw = new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false };
        Console.SetOut(sw);
        Solve();
        Console.Out.Flush();
    }
    static void Solve()
    {
        var N = sc.ReadLong();
        var pf = PrimeFactors(N);
        var ans = 1L;
        foreach (var t in pf)
        {
            var sum = 1L;
            var now = 1L;
            for (int i = 0; i < t.Item2; i++)
            {
                now *= t.Item1;
                sum += now;
            }
            ans *= sum;
        }
        Console.WriteLine(ans);
    }

    static List<Tuple<long, int>> PrimeFactors(long n)
    {
        var res = new List<Tuple<long, int>>();
        var count = 0;
        for (long x = 2; x * x <= n; x++)
        {
            count = 0;
            while (n % x == 0)
            {
                n /= x;
                count++;
            }
            if (count > 0) res.Add(Tuple.Create(x, count));
        }
        if (n != 1) res.Add(Tuple.Create(n, 1));
        return res;
    }
    static Scanner sc = new Scanner();
}
class Scanner
{
    string[] S = new string[0];
    int Index = 0;
    char[] Separators = new char[] { ' ' };

    public string Next()
    {
        if (this.Index < this.S.Length) return this.S[this.Index++];
        var line = "";
        while (line == "") line = Console.ReadLine();
        this.S = line.Split(this.Separators, StringSplitOptions.RemoveEmptyEntries);
        if (this.S.Length == 0) return this.Next();
        this.Index = 0;
        return this.S[this.Index++];
    }
    public string ReadStr()
    {
        return this.Next();
    }
    public char ReadChar()
    {
        return this.Next()[0];
    }
    public int ReadInt()
    {
        return int.Parse(this.Next());
    }
    public uint ReadUInt()
    {
        return uint.Parse(this.Next());
    }
    public long ReadLong()
    {
        return long.Parse(this.Next());
    }
    public double ReadDouble()
    {
        return double.Parse(this.Next());
    }
    public Tuple<int, int> ReadTup(int add = 0)
    {
        return Tuple.Create(this.ReadInt() + add, this.ReadInt() + add);
    }
    public Tuple<long, long> ReadTupLong(int add = 0)
    {
        return Tuple.Create(this.ReadLong() + add, this.ReadLong() + add);
    }
    public Tuple<int, int, int> ReadTup3(int add = 0)
    {
        return Tuple.Create(this.ReadInt() + add, this.ReadInt() + add, this.ReadInt() + add);
    }
    public Tuple<int, int, int, int> ReadTup4(int add = 0)
    {
        return Tuple.Create(this.ReadInt() + add, this.ReadInt() + add, this.ReadInt() + add, this.ReadInt() + add);
    }
    public int[] ReadIntArray(int n)
    {
        var array = new int[n];
        for (int i = 0; i < array.Length; i++)
        {
            array[i] = this.ReadInt();
        }
        return array;
    }
    public long[] ReadLongArray(int n)
    {
        var array = new long[n];
        for (int i = 0; i < array.Length; i++)
        {
            array[i] = this.ReadLong();
        }
        return array;
    }
    public double[] ReadDoubleArray(int n)
    {
        var array = new double[n];
        for (int i = 0; i < array.Length; i++)
        {
            array[i] = this.ReadDouble();
        }
        return array;
    }
    public char[] ReadCharArray(int n)
    {
        var array = new char[n];
        for (int i = 0; i < array.Length; i++)
        {
            array[i] = this.ReadChar();
        }
        return array;
    }
    public string[] ReadStrArray(int n)
    {
        var array = new string[n];
        for (int i = 0; i < array.Length; i++)
        {
            array[i] = this.ReadStr();
        }
        return array;
    }
    public Tuple<long, long>[] ReadTupLongArray(int n, int add = 0)
    {
        var array = new Tuple<long, long>[n];
        for (int i = 0; i < n; i++)
        {
            array[i] = this.ReadTupLong(add);
        }
        return array;
    }
    public Tuple<int, int>[] ReadTupArray(int n, int add = 0)
    {
        var array = new Tuple<int, int>[n];
        for (int i = 0; i < n; i++)
        {
            array[i] = this.ReadTup(add);
        }
        return array;
    }
    public Tuple<int, int, int>[] ReadTup3Array(int n, int add = 0)
    {
        var array = new Tuple<int, int, int>[n];
        for (int i = 0; i < n; i++)
        {
            array[i] = this.ReadTup3(add);
        }
        return array;
    }
    public Tuple<int, int, int, int>[] ReadTup4Array(int n, int add = 0)
    {
        var array = new Tuple<int, int, int, int>[n];
        for (int i = 0; i < n; i++)
        {
            array[i] = this.ReadTup4(add);
        }
        return array;
    }
}
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