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

for i in range(2, int(K**0.5)+1):
    if K % i == 0:
        num1, num2 = i, K // i
        
        if num1 != num2:
            if num1 - 1 <= N and num2 - 1 <= N:
                ans += 2 * (num1 - 1) * (num2 - 1)
            elif num1 - 1 <= N and num2 - 1 > N:
                if num2 - N <= N:
                    ans += 2 * (num1 - 1) * (2 * N - num2 + 1)
            elif num1 - 1 > N and num2 - 1 <= N:
                if num1 - N <= N:
                    ans += 2 * (2 * N - num1 + 1) * (num2 - 1)
            else:
                if num1 - N <= N and num2 - N <= N:
                    ans += 2 * (2 * N - num1 + 1) * (2 * N - num2 + 1)
        else:
            if num1 - 1 <= N and num2 - 1 <= N:
                ans += (num1 - 1) * (num2 - 1)
            elif num1 - 1 <= N and num2 - 1 > N:
                if num2 - N <= N:
                    ans += (num1 - 1) * (2 * N - num2 + 1)
            elif num1 - 1 > N and num2 - 1 <= N:
                if num1 - N <= N:
                    ans += (2 * N - num1 + 1) * (num2 - 1)
            else:
                if num1 - N <= N and num2 - N <= N:
                    ans += (2 * N - num1 + 1) * (2 * N - num2 + 1)
print(ans)