import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

# (a+c)(b+d) = K

import numpy as np

N,K = map(int,read().split())

x = np.arange(1, 10**6+10, dtype=np.int64)
div = x[K % x == 0]

div = np.union1d(div, K // div)

AC = div; BD = K // div

# N 以下という条件を反映させる
# a + c = AC
low_a = np.maximum(1,AC-N)
high_a = np.minimum(N,AC-1)
cnt_a = np.maximum(0,high_a - low_a + 1)

low_b = np.maximum(1,BD-N)
high_b = np.minimum(N,BD-1)
cnt_b = np.maximum(0,high_b - low_b + 1)

answer = (cnt_a * cnt_b).sum()
print(answer)