• 문제 링크
https://www.acmicpc.net/problem/14782
• 풀이 코드
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
public class Main {
public static void main(String[] args) throws IOException {
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
int n = read(), sum = 0;
for (int i = 1; i <= n; i++) if (n % i == 0) sum += i;
bw.write(String.valueOf(sum));
bw.flush();
}
private static int read() throws IOException {
int c, n = System.in.read() & 15;
while ((c = System.in.read()) > 32) n = (n << 3) + (n << 1) + (c & 15);
return n;
}
}
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