import java.io.PrintWriter;
import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Scanner;

class Main {
	public static void main(String[] args) {
		new Main().run();
	}
	
	final long MOD=(long)1e9+7;
	
	void run() {
		Scanner sc = new Scanner(System.in);
		int S=sc.nextInt();
		while (S-->0) {
			long ans=0;
			long x=sc.nextLong();
			long y=sc.nextLong();
			if (x==y) ans=x-1;
			boolean flag=false;
			for (long div=3;div*div<=x+y;++div) {
				for (long d:new long[] {div,(x+y)/div}) {
					if (d*d==x+y) {
						if (flag) continue;
						else flag=true;
					}
					long a=d-1;
					long bc=(x+y)/d;
					long b=(x-bc)/(a-1);
					long c=bc-b;
					if (x!=a*b+c || y!=a*c+b || a<=0 || b<=0 || c<=0) continue;
					ans+=1;
				}
			}
			System.out.println(ans);
		}
		
	}
	
	void tr(Object...o) {System.out.println(Arrays.deepToString(o));}
}