#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
  int T;
  cin>>T;
  for(int i=0;i<T;i++){
      int A,X;
      cin>>A>>X;
      swap(A,X);
      int ans = 1e18;
      for(int j=1;j<=A;j++){
          int now = j*X;
          int a = A/j;
          int b = A%j;
          now += a*a*(j-b)+(a+1)*(a+1)*b;
          ans = min(ans,now);
      }
      cout<<ans<<endl;
  }
}