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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Ideone
  6. {
  7. 	static int sum_dividers(int n){
  8. 		int sum=0;
  9.     		for(int i=1; i<Math.sqrt(n); i++){
  10.         			if((n%i)==0)sum+=i+(n/i);
  11.     		}
  12.     		double i=Math.round(Math.sqrt(n));
  13.     		if(i*i==n)sum+=i;
  14.     		return sum;
  15. 	}
  16.  
  17. 	public static void main (String[] args) throws java.lang.Exception
  18. 	{
  19. 		Scanner in = new Scanner(System.in);
  20. 		int n=in.nextInt();
  21. 		int max_sum=0;
  22. 		int max_number=0;
  23. 		int j;
  24. 		for(j=1; j<=n; j++){
  25. 			int s=sum_dividers(j);
  26. 			if(max_sum<s){
  27.             			max_sum=s;
  28.             			max_number=j;
  29. 			}
  30. 		}
  31. 		System.out.println(max_number+" "+max_sum);
  32. 	}
  33. }
Success #stdin #stdout 0.13s 29668KB
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stdin
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8743
stdout
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8400 30752
https://ideone.com/Kk37QI
Максимальная сумма делителей
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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