mod = 1000000007
eps = 10**-9


def main():
    import sys
    input = sys.stdin.buffer.readline

    def divisors(n):
        ret = []
        for d in range(1, n+1):
            if d * d > n:
                break
            if n%d == 0:
                ret.append(d)
                ret.append(n//d)
        if ret[-1] == ret[-2]:
            ret.pop()
        return ret

    for _ in range(int(input())):
        x, y = map(int, input().split())
        if x < y:
            x, y = y, x

        xy = x+y
        div = divisors(xy)
        ans = 0
        for d in div:
            a = d - 1
            if a == 0:
                continue
            bc = xy // (a+1)
            if a == 1:
                if x == y:
                    ans += x-1
                    continue
                else:
                    continue
            if (x-y) % (a-1) != 0:
                continue
            b_c = (x-y) // (a-1)
            if bc%2 == b_c%2:
                b = (bc + b_c)//2
                c = (bc - b_c)//2
                if b > 0 and c > 0:
                    ans += 1
        print(ans)


if __name__ == '__main__':
    main()