import sys
import math

def get_divisors(n):
    if n == 0:
        return []
    divisors = set()
    for i in range(1, int(math.isqrt(abs(n))) + 1):
        if abs(n) % i == 0:
            divisors.add(i)
            divisors.add(-i)
            divisors.add(abs(n)//i)
            divisors.add(-abs(n)//i)
    return divisors

def count_valid_triples(X, Y):
    D = X - Y
    divisors = get_divisors(D)
    count = 0
    for d in divisors:
        if d == 0:
            continue
        A = d + 1
        if A <= 0:
            continue
        delta = D // d
        numerator = X - A * delta
        denominator = A + 1
        if denominator == 0:
            continue
        if numerator <= 0:
            continue
        if numerator % denominator != 0:
            continue
        C = numerator // denominator
        if C <= 0:
            continue
        B = C + delta
        if B <= 0:
            continue
        if A * C + B != Y:
            continue
        count += 1
    return count

def main():
    input = sys.stdin.read().split()
    S = int(input[0])
    idx = 1
    for _ in range(S):
        X = int(input[idx])
        Y = int(input[idx+1])
        idx +=2
        print(count_valid_triples(X, Y))
    print()

if __name__ == "__main__":
    main()