PHP Code:
#include<stdio.h>
#include<math.h>
int main()
{
unsigned long long i,n;
int dem;
while(scanf ("%lld",&n)>0)
{
dem=0;
for (i=2;i<=n;i++)
{
if (n%i==0)
{
dem++;
n/=i;
i--;
}
}
printf ("%d\n",dem);
}
}
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