#include <bits/stdc++.h>
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define chmax(a, b) a = max(a, b)
#define chmin(a, b) a = min(a, b)
#define all(x) (x).begin(), (x).end()
using namespace std;
using ll = long long;
using P = pair<int,int>;
using VI = vector<int>;
using VVI = vector<VI>;

vector<int> divs(int x) {
    vector<int> res;
    for(int i = 1; i * i <= x; ++i) {
        if (x % i == 0) {
            res.push_back(i);
            if (i * i < x) {
                res.push_back(x / i);
            }
        }
    }
    return res;
}

int main() {
    int tt;
    cin >> tt;
    while(tt--) {
        int x, y;
        cin >> x >> y;
        if (x == y) {
            int ans = x - 1;
            for(int d: divs(x)) {
                if (d <= 2) continue;
                ++ans;
            }
            cout << ans << endl;
        } else {
            if (x < y) swap(x, y);
            int p = x + y, q = x - y;
            int ans = 0;
            for(int d: divs(q)) {
                int a = d + 1;
                if (p % (a + 1) == 0) {
                    int s = p / (a + 1), t = q / (a - 1);
                    ans += s > t && s % 2 == t % 2;
                }
            }
            cout << ans << endl;
        }
    }
}