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

class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    static int[][] NArr(long n) => Enumerable.Repeat(0, (int)n).Select(_ => NList).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var t = NN;
        var ans = new int[t];
        for (var u = 0; u < t; ++u)
        {
            var c = NList;
            var (x, y) = (c[0], c[1]);
            ans[u] = Cookie(x, y);
        }
        WriteLine(string.Join("\n", ans));
    }
    static int Cookie(int x, int y)
    {
        var ans = 0;
        var s = x + y;
        var d = Math.Abs(x - y);
        if (d == 0)
        {
            foreach (var p in PList(s))
            {
                if (p == 2) ans += x - 1;
                else if (p > 2 && s / p % 2 == 0)
                {
                    ++ans;
                }
            }
        }
        else
        {
            foreach (var p in PList(s))
            {
                var a = p - 1;
                if (a > 1 && d % (a - 1) == 0)
                {
                    if ((s / p + d / (a - 1)) % 2 == 0 && s / p > d / (a - 1))
                    {
                        ++ans;
                    }
                }
            }
        }
        return ans;
    }
    static List<int> PList(int n)
    {
        var ans = new List<int>();
        for (var i = 1; i * i <= n; ++i)
        {
            if (n % i == 0)
            {
                ans.Add(i);
                if (i * i < n) ans.Add(n / i);
            }
        }
        return ans;
    }
}