using System;
using CompLib.Util;

public class Program
{
    public void Solve()
    {
        var sc = new Scanner();
        long n = sc.NextLong();
        long k = sc.NextLong();
        long ans = 0;
        for (long ac = 1; ac * ac <= k; ac++)
        {
            if (k % ac != 0) continue;
            long bd = k / ac;

            // ac,bdを[1,N]の2数の和にする
            // Console.WriteLine($"{ac} {C(ac, n)} {bd} {C(bd, n)}");
            ans += C(ac, n) * C(bd, n) * (ac == bd ? 1 : 2);
        }

        Console.WriteLine(ans);
    }

    long C(long sum, long n)
    {
        if (sum > 2 * n) return 0;
        if (sum <= n + 1) return sum - 1;
        return 2 * n - sum + 1;
    }

    public static void Main(string[] args) => new Program().Solve();
}

namespace CompLib.Util
{
    using System;
    using System.Linq;

    class Scanner
    {
        private string[] _line;
        private int _index;
        private const char Separator = ' ';

        public Scanner()
        {
            _line = new string[0];
            _index = 0;
        }

        public string Next()
        {
            if (_index >= _line.Length)
            {
                string s;
                do
                {
                    s = Console.ReadLine();
                } while (s.Length == 0);

                _line = s.Split(Separator);
                _index = 0;
            }

            return _line[_index++];
        }

        public int NextInt() => int.Parse(Next());
        public long NextLong() => long.Parse(Next());
        public double NextDouble() => double.Parse(Next());
        public decimal NextDecimal() => decimal.Parse(Next());
        public char NextChar() => Next()[0];
        public char[] NextCharArray() => Next().ToCharArray();

        public string[] Array()
        {
            string s = Console.ReadLine();
            _line = s.Length == 0 ? new string[0] : s.Split(Separator);
            _index = _line.Length;
            return _line;
        }

        public int[] IntArray() => Array().Select(int.Parse).ToArray();
        public long[] LongArray() => Array().Select(long.Parse).ToArray();
        public double[] DoubleArray() => Array().Select(double.Parse).ToArray();
        public decimal[] DecimalArray() => Array().Select(decimal.Parse).ToArray();
    }
}