#include<fstream>

using namespace std;

int main()
{
    ifstream fin("sumdiv.in");
    ofstream fout("sumdiv.out");
int a,b,i,t=1,s=1;
fin>>a>>b;
for(i = 1; i <= b; i++)
      t*=a;
      s+=t;
for(i = 2; i<= t/2; i++)
if(t%i == 0)
s+=i;
fout<<s;
fin.close();
fout.close();

return 0;
}