Q: What is the sum of all factors of the number 320,440 excluding 320,440?
A: 400,640
The factors of the number 320,440 are: 1, 2, 4, 5, 8, 10, 20, 40, 8011, 16022, 32044, 40055, 64088, 80110, 160220, 320440.
If you add them up, you will get the total of 320,840. Now subtract 320,440 to get 400,640