import math
n=int(input())
arrary=[]
count=0
for i in range(1,int(math.sqrt(n))+1):
    if n%i==0:
        arrary.append(n//i)
for i in range(len(arrary)):
    if arrary[i]==math.sqrt(n):
        count-=1

print(len(arrary)*2+count)