#include <iostream>
using namespace std;
#define rep(i,n) for(int i=0;i<(n);i++)
using ll = long long;

bool f(int x, int y) {
    if (x / y > 0 && x % y == 0) return true;
    else return false;
}

void solve() {
    int x, y;
    cin >> x >> y;
    if (x < y) swap(x, y);
    int cnt = 0;
    for (int i = 1; i * i <= x - y; i++) {
        if ((x - y) % i == 0) {
            {
                int a = i + 1;
                int div = (a + 1) * (a - 1);
                int b = a * x - y, c = a * y - x;
                if (f(b, div) && f(c, div)) {
                    cnt++;
                }
            }
            {
                int a = (x - y) / i + 1;
                int div = (a + 1) * (a - 1);
                int b = a * x - y, c = a * y - x;
                if (f(b, div) && f(c, div)) {
                    cnt++;
                }
            }
        }
    }
    cout << cnt << endl;
}

int main() {
    int t;
    cin >> t;
    rep(i, t) solve();
    return 0;
}