k = input().split()
for i in k:
try:i=int(i)
except:print("Wait, that's not a number...");continue
j=abs(i);r=0;p=2
if j:
while j-1:
while j%p==0:j//=p;r+=i//p
p+=1
print(r)
Note that non-ascii characters in the above source code will be escaped (such as \x9f).