import java.io.PrintWriter;
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);
		PrintWriter pw=new PrintWriter(System.out);
		int S=sc.nextInt();
		while (S-->0) {
			long ans=0;
			long x=Long.parseLong(sc.next());
			long y=Long.parseLong(sc.next());
			if (x==y) ans=x-1;
			ArrayList<Long> divs=new ArrayList<>();
			int add=(x+y)%2==0?1:2;
			for (long div=3;div*div<=x+y;div+=add) {
				if ((x+y)%div!=0) continue;
				divs.add(div);
				if (div*div!=x+y) {
					divs.add((x+y)/div);
				}
			}
			for (long d:divs) {
				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;
			}
			pw.println(ans);
		}
		pw.flush();
	}
	
	void tr(Object...o) {System.out.println(Arrays.deepToString(o));}
}