n = int(input())

ans = 0

appear_list = list()

for i in range(1, int(n ** 0.5) + 1):
    if n % i == 0:
        if i * i == n:
            if [i, i] in appear_list:
                continue
            ans += 1
            appear_list.append([i, i])
        else:
            if [i, n // i] in appear_list or [n // i, i] in appear_list:
                continue
            ans += 2
            appear_list.append([i, n // i])
            appear_list.append([n // i, i])

print(ans)