import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;

public class Main {
	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int s = Integer.parseInt(br.readLine());
		PrintWriter pw = new PrintWriter(System.out);
		for (int i = 0; i < s; i++) {
			String[] sa = br.readLine().split(" ");
			int x = Integer.parseInt(sa[0]);
			int y = Integer.parseInt(sa[1]);
			int xy = x + y;
			List<Integer> list = divList(xy);
			int ans = 0;
			for (int o : list) {
				long a = o - 1;
				long bc = xy / o;
				long y2 = y * a - x;
				long c2 = a * a - 1;
				if (y2 > 0 && y2 % c2 == 0 && y2 / c2 < bc) {
					ans++;
				}
			}
			pw.println(ans);
		}
		br.close();
		pw.flush();
	}

	static List<Integer> divList(int n) {
		List<Integer> list = new ArrayList<>();
		int end = (int) Math.sqrt(n);
		for (int i = 2; i <= end; i++) {
			if (n % i == 0) {
				list.add(i);
			}
		}
		int i = end * end == n ? list.size() - 2 : list.size() - 1;
		for ( ; i >= 0; i--) {
			list.add(n / list.get(i));
		}
		return list;
	}
}