#include<stdio.h>

int main()
{
	int a,b,c,d,x;
	int i = 0;
	
	scanf( "%d %d %d",&a, &b, &c);
	
	for( x = a; x <= b; x++ );
	{
		d = c % x
		if( d = 0)
		{
			i = i + 1;
		}
		
		printf( "%d\n",i );
	}
	return 0;
}
