import math
N = int(input())
m = math.sqrt(N)
n = math.floor(m)
L = []
for i in range(1,n+1):
    if N % i == 0:
        L.append([i,int(N/i)])
cnt = 0
for i in range(len(L)):
    if L[i][0] == L[i][1]:
        cnt += 1
    elif L[i][0] != L[i][1]:
        cnt += 2
print(cnt)