#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); ++i)
#define srep(i,s,t) for (int i = s; i < t; ++i)
#define drep(i,n) for(int i = (n)-1; i >= 0; --i)
using namespace std;
typedef long long int ll;
typedef pair<int,int> P;
#define yn {puts("YES");}else{puts("NO");}
#define MAX_N 200005

vector<pair<ll, int>> PrimeFactorInit(ll x){ // 素因数と個数のペアを返す.
    vector<pair<ll, int>> fac;
    if(x >= 2){
        for(ll i = 2; i <= x; i++){
            if(i * i > x)break;
            if(x % i == 0){
                int cnt = 0;
                while(x % i == 0){
                    cnt++;
                    x /= i;
                }
                pair<ll, int> p;
                p.first = i;
                p.second = cnt;
                fac.push_back(p);
            }
        }
        if(x > 1){
            pair<ll, int> p;
            p.first = x;
            p.second = 1;
            fac.push_back(p);
        }
    }
    return fac;
}

vector<ll>  yakusuu_rekkyo(ll n){
    vector<ll> divisors;
    for(ll i = 1; i <= n; i++){
        if(i * i > n)break;
        if(i * i == n){
            divisors.push_back(i);
            break;
        }else if(n % i == 0){
            divisors.push_back(i);
            divisors.push_back(n/i);
        }   
    }
    sort(divisors.begin(), divisors.end());
    return divisors;
}

int main() {
    int S;
    cin >> S;
    rep(_,S){
        ll x, y;
        cin >> x >> y;
        if(x < y) swap(x,y);
        ll z = x + y;
        vector<ll> v = yakusuu_rekkyo(z);

        int n = v.size();
        int ans = 0;
        rep(i,n){
            if(v[i] == 1) continue;
            ll a = v[i] - 1;
            if(a == 1){
                if(x != y)continue;
                ans += x - 1;
            }else{
                if((x-y)%(a-1)!=0) continue;
                ll c = z/v[i] + (x-y)/(a-1);
                ll d = z/v[i] - (x-y)/(a-1);
                if(c > 0 && c % 2 == 0 && d > 0 && d % 2 == 0){
                    ans++;
                }
            }
        }
        cout << ans << endl;
    }
    return 0;
}