#include<bits/stdc++.h>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
using mint=modint998244353; //1000000007;
using ll=long long;
using pp=pair<int,int>;
#define sr string 
#define vc vector
#define fi first
#define se second
#define rep(i,n) for(int i=0;i<(int)n;i++)
#define pb push_back
#define all(v) v.begin(),v.end()
#define pque priority_queue
#define bpc(a) __builtin_popcount(a)
int main(){
  int t;cin>>t;
  rep(tt,t){
    int x,y;cin>>x>>y;
    int z=x+y;
    int ans=0;
    if(x==y)ans=x;
    for(int i=3;i*i<=z;i++)if(z%i==0){
      int j=z/i; 
      if(j<3)continue;
      int a=i-1;
      int b=(x-j)/(a-1);
      int c=j-b;
      if(b>0&&c>0&&x==b*a+c&&y==a*c+b)ans++;
      a=j-1;
      b=(x-i)/(a-1);
      c=i-b;
      if(b>0&&c>0&&x==b*a+c&&y==a*c+b)ans++;
    }
    cout<<ans<<"\n";
  }
}