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- #include <iostream>
- #include <vector>
- #include <cmath>
- #include <map>
- using namespace std;
- int main()
- {
- vector<char> prime(55556, true);
- prime[0] = prime[1] = false;
- for (int i = 2; i <= 55555; ++i)
- if (prime[i])
- if (i * 1ll * i <= 55555)
- for (int j = i * i; j <= 55555; j += i)
- prime[j] = false;
- for (int i = 33333; i < 55555 + 1; ++i)
- {
- int sum(0);
- for (int j = 2; j < i / 2 + 1; ++j)
- {
- if (prime[j])
- {
- if (i % j == 0)
- sum += j;
- }
- }
- if (sum == 0)
- continue;
- if ((i % sum == 0 ) && sum > 250)
- cout << i << ' ' << sum << '\n';
- }
- return 0;
- }
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