#include<iostream>
using namespace std;
int S,X,Y;
main()
{
	cin>>S;
	for(;S--;)
	{
		cin>>X>>Y;
		int ans=0;
		if(X==Y)ans+=X+1;
		int T=X+Y;
		for(int i=1;i*i<=T;i++)if(T%i==0)
		{
			if(i>2)
			{
				long A=i-1;
				if(A*X>=Y&&(A*X-Y)%(A*A-1)==0&&A*Y>=X&&(A*Y-X)%(A*A-1)==0)ans++;
			}
			if(T/i>i&&T/i>2)
			{
				long A=T/i-1;
				if(A*X>=Y&&(A*X-Y)%(A*A-1)==0&&A*Y>=X&&(A*Y-X)%(A*A-1)==0)ans++;
			}
		}
		cout<<ans<<endl;
	}
}