using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;
using System.Security.Cryptography;

class Program
{
    static long NN => long.Parse(ReadLine());
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var n = NN;
        var k = NN;
        var ans = 0L;
        var plist = P(k);
        foreach (var p in plist)
        {
            ans += Mul(n, p) * Mul(n, k / p);
        }
        WriteLine(ans);
    }
    static List<long> P(long n)
    {
        var ans = new List<long>();
        for (var i = 1L; i * i <= n; ++i)
        {
            if (n % i == 0)
            {
                ans.Add(i);
                if (i * i < n) ans.Add(n / i);
            }
        }
        return ans;
    }
    static long Mul(long n, long p)
    {
        return Math.Max(0, p - 1 - Math.Max(0, p - 1 - n) * 2);
    }
}