from math import ceil

N = int(input())
K = int(input())
ans = 0

for i in range(1, int(K**0.5)+1):
    if K % i == 0:
        P, Q = i, K // i
        
        if N >= P - 1 and N >= Q - 1:
            add = 2 * (P - 1) * (Q - 1)
        elif N >= P - 1 and Q - 2 >= N >= ceil(Q / 2):
            add = 2 * (P - 1) * (2 * N - Q + 1)
        elif P - 2 >= N >= ceil(P / 2) and N >= Q - 1:
            add = 2 * (2 * N - P + 1) * (Q - 1)
        else:
            add = 0
            
        if P == Q:
            add //= 2
        
        ans += add

print(ans)