Q: What is the sum of all factors of the number 561,978 excluding 561,978?
A: 697,632
The factors of the number 561,978 are: 1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 3469, 6938, 10407, 20814, 31221, 62442, 93663, 187326, 280989, 561978.
If you add them up, you will get the total of 562,675. Now subtract 561,978 to get 697,632