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  1. #include<stdio.h>
  2.  
  3. int main()
  4. {
  5.     int i, j, k, a, b;
  6.  
  7.     for (a = 3; a <= 1500; a++) {
  8.         for (i = 1, j = 0; i < a; i++) {
  9.             if (a % i == 0) {
  10.                 j += i;
  11.             }
  12.         }
  13.  
  14.         for (b = 2; b < a; b++) {
  15.             for (i = 1, k = 0; i < b; i++) {
  16.                 if (b % i == 0) {
  17.                     k += i;
  18.                 }
  19.             }
  20.  
  21.             if (j == b && k == a) {
  22.                 printf("%d:1", a);
  23.                 for (i = 2; i < a; i++) {
  24.                     if (a % i == 0) {
  25.                         printf("+%d", i);
  26.                     }
  27.                 }
  28.                 printf("=%d\n", j);
  29.  
  30.                 printf("%d:1", b);
  31.                 for (i = 2; i < b; i++) {
  32.                     if (b % i == 0) {
  33.                         printf("+%d", i);
  34.                     }
  35.                 }
  36.                 printf("=%d\n\n", k);
  37.             }
  38.         }
  39.     }
  40.  
  41.     return 0;
  42. }
  43.  
Success #stdin #stdout 1.52s 5280KB
comments (?)
stdin
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Standard input is empty
stdout
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284:1+2+4+71+142=220
220:1+2+4+5+10+11+20+22+44+55+110=284

1210:1+2+5+10+11+22+55+110+121+242+605=1184
1184:1+2+4+8+16+32+37+74+148+296+592=1210
https://ideone.com/3CpDOx
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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