s = int(input())

def make_divisors(n):
    divisors = []
    for i in range(1, int(n**0.5)+1):
        if n % i == 0:
            divisors.append(i)
            if i != n // i:
                divisors.append(n//i)

    #divisors.sort(reverse=True)
    return divisors

for _ in range(s):
    x, y = map(int, input().split())
    t = x-y
    if t == 0:
        ans = x-1
        D = make_divisors(x)
        if x%2 == 0:
            for d in D:
                if d >= 3:
                    ans += 1
        else:
            for d in D:
                if d >= 2:
                    ans += 1
        print(ans)
    elif t > 0:
        D = make_divisors(t)
        ans = 0
        for d in D:
            a = d+1
            if (a*y-x)>0 and (a*y-x)%(a**2-1) == 0 and (a*x-y)>0 and (a*x-y)%(a**2-1) == 0:
                 ans += 1
        print(ans)
    else:
        t = (-1)*t
        D = make_divisors(t)
        ans = 0
        for d in D:
            a = d+1
            if (a*y-x)>0 and (a*y-x)%(a**2-1) == 0 and (a*x-y)>0 and (a*x-y)%(a**2-1) == 0:
                 ans += 1
        print(ans)