


#include<stdio.h>

int main(void)

{

 int a,b,c;

 int count=0;

 int i;

   scanf("%d %d %d",&a,&b,&c);

   for(i=a;i<=b;i++)

  {

  if(c%i==0) count++;

 }

   printf("%d\n",count);

   return 0;

}
  
 





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 ?????? 4 