#include <bits/stdc++.h>

using namespace std;

using ll = int;

constexpr char newl = '\n';

ll solve(ll x, ll y) {    
    // x = ab+c, y = ac+b
    // x + y = (a + 1)(b + c)
    ll sum = x + y;
    ll res = 0;
    for (ll i = 2; i * i <= sum; i++) {
        if (sum % i != 0) continue;
        ll j = sum / i;

        // a + 1 == i, b + c == j
        // (i - 1) c + (j - c) == y
        // (i - 2) c + j == y
        // c == (y - j) / (i - 2)
        if (i == 2 && x == y) {
            res += j - 1;
        } else if (i > 2 && y > j && (y - j) % (i - 2) == 0) {
            ll a = i - 1;
            ll c = (y - j) / (i - 2);
            ll b = j - c;
            res += (a > 0 && b > 0 && c > 0);
        }

        if (i == j) continue;

        // b + c == i, a + 1 == j
        // c == (y - i) / (j - 2)
        if (j == 2 && x == y) {
            res += i - 1;
        } else if (j > 2 && y > i && (y - i) % (j - 2) == 0) {
            ll a = j - 1;
            ll c = (y - i) / (j - 2);
            ll b = i - c;
            res += (a > 0 && b > 0 && c > 0);            
        }
    }
    return res;
}

int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);

    int n;
    cin >> n;

    for (int i = 0; i < n; i++) {
        ll x, y;
        cin >> x >> y;
        cout << solve(x, y) << newl;
    }

    return 0;
}