Q: What is the sum of all factors of the number 65,540 excluding 65,540?
A: 78,100
The factors of the number 65,540 are: 1, 2, 4, 5, 10, 20, 29, 58, 113, 116, 145, 226, 290, 452, 565, 580, 1130, 2260, 3277, 6554, 13108, 16385, 32770, 65540.
If you add them up, you will get the total of 65,618. Now subtract 65,540 to get 78,100