import functools
import sys
input = sys.stdin.buffer.readline

@functools.lru_cache(maxsize=10**5)
def make_divisors(n: int) -> list:
    """自然数nの約数を列挙したリストを出力する
    計算量: O(sqrt(N))
    入出力例: 12 -> [1, 2, 3, 4, 6, 12]
    """
    divisors = []
    for k in range(1, int(n ** 0.5) + 1):
        if n % k == 0:
            divisors.append(k)
            if k != n // k: 
                divisors.append(n // k)
    return divisors


s = int(input())
memo = {}
for _ in range(s):
    x, y = map(int, input().split())
    
    if x < y:
        x, y = y, x
    
    sum_ = x + y
    diff = x - y
    
    cnt = 0

    if diff == 0:
        cnt += x - 1
        # b * (a + 1) = x
        cnt += (len(make_divisors(x)) - 1)
        print(cnt)
        continue

    for div in make_divisors(diff):
        a = div + 1
  
        # b + c = sum_ // (a + 1)
        # b - c = diff // (a - 1)
        if sum_ % (a + 1) != 0:
            continue

        t1, t2 = sum_ // (a + 1), diff // (a - 1)
        if (t1 + t2) % 2 == 1:
            continue
        b, c = (t1 + t2) // 2, (t1 - t2) // 2

        if b > 0 and c > 0:
            cnt += 1

    print(cnt)