#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i, s, e) for (int i = (int)(s); i < (int)(e); ++i)

int main() {
	cin.tie(nullptr);
	ios_base::sync_with_stdio(false);
	
	int T;
	cin >> T;
	
	for (;T--;) {
		ll X, A;
		cin >> X >> A;
		
		ll ans = 1ll << 60;
		rep(t, 1, A + 1) {
			ll x = A / t;
			
			int rest = (A - x*t);
			
			ll res = x*x*(t - rest) + (x + 1)*(x + 1)*rest + t*X;
			ans = min(ans, res);
		}
		cout << ans << '\n';
	}
}