from math import isqrt

for _ in range(int(input())):
	A, B = map(int, input().split())
	change = set()
	for d in range(1, isqrt(A) + 1):
		change.add(d)
		change.add(A // d)
	for d in range(1, isqrt(B) + 1):
		change.add(d)
		change.add(B // d)
	change = list(change)
	change.sort(reverse = True)
	N = len(change)
	change.append(0)
	ans = 0
	for i in range(N):
		fa, fb = A % change[i], B % change[i]
		da, db = A // change[i], B // change[i]
		l = change[i] - change[i + 1]
		if da == db:
			if fa >= fb:
				ans += l
			continue
		if fa < fb:
			continue
		x = (fa - fb) // (db - da)
		ans += min(l, x + 1)
	print(ans)