Q: What is the sum of all factors of the number 28,420 excluding 28,420?
A: 43,400
The factors of the number 28,420 are: 1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 290, 406, 490, 580, 812, 980, 1015, 1421, 2030, 2842, 4060, 5684, 7105, 14210, 28420.
If you add them up, you will get the total of 28,463. Now subtract 28,420 to get 43,400