Cod sursa(job #196210)

Utilizator slayer4uVictor Popescu slayer4u Data 24 iunie 2008 20:48:03
Problema Suma divizorilor Scor 60
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.83 kb
#include <stdio.h>

long long nr, j, a, b, rez, sum, SUM, i, puteri[100], exp[100];

int main()
{
	freopen ("sumdiv.in", "rt", stdin);
	freopen ("sumdiv.out", "wt", stdout);

	scanf("%lld %lld", &a, &b);

	if (a == 1 || !b)
	{
		printf("1\n");
		return 0;
	}
	
	for (i = 2; i * i <= a; ++i)
	{
		if (a % i == 0)
		{		
			puteri[++puteri[0]] = i;
			++exp[0];
			while (a % i == 0)
			{
				++exp[exp[0]];
				a /= i;
			}
			exp[exp[0]] *= b;
		}
	}
	if (a > 1)
	{
		puteri[++puteri[0]] = a;
		exp[++exp[0]] = b;
	}

	SUM = 1;
	for (i = 1; i <= puteri[0]; ++i)
	{
		sum = 1;
		nr = 1;
		for (j = 1; j <= exp[i]; ++j)
		{
			sum += (nr * puteri[i]) % 9901;
			nr *= puteri[i];
			nr %= 9901;
		}
		SUM *= (sum % 9901);
		SUM %= 9901;
	}

	SUM %= 9901;

	printf("%lld\n", SUM);

	return 0;
}