Q: What is the sum of all factors of the number 42,440 excluding 42,440?
A: 53,140
The factors of the number 42,440 are: 1, 2, 4, 5, 8, 10, 20, 40, 1061, 2122, 4244, 5305, 8488, 10610, 21220, 42440.
If you add them up, you will get the total of 42,493. Now subtract 42,440 to get 53,140