import sys; input = sys.stdin.buffer.readline
sys.setrecursionlimit(10**7)
from collections import defaultdict
con = 10 ** 9 + 7; INF = float("inf")

def getlist():
	return list(map(int, input().split()))

#処理内容
def main():
	N = int(input())
	K = int(input())
	ans = 0
	M = int(K ** 0.5 // 1)
	for i in range(1, M + 1):
		if K % i == 0:
			j = int(K // i)
			if i <= N:
				a = i - 1
			else:
				a = max(2 * N - i + 1, 0)

			if j <= N:
				b = j - 1
			else:
				b = max(2 * N - j + 1, 0)

			# print(i, j, a, b)

			if i == j:
				ans += a * b
			else:
				ans += 2 * a * b

	print(ans)

if __name__ == '__main__':
	main()