n, K = map(int, input().split())
dp = {1:1}

for i in range(1, n + 1):
    dp2 = {}
    for k, v in dp.items():
        dp2[k] = dp2.get(k, 0) + v
        if i * k <= K:
            dp2[i * k] = dp2.get(i * k, 0) + v
    dp = dp2
    
print(sum(dp.values()) - 1)