Q: What is the sum of all factors of the number 284,840 excluding 284,840?
A: 356,140
The factors of the number 284,840 are: 1, 2, 4, 5, 8, 10, 20, 40, 7121, 14242, 28484, 35605, 56968, 71210, 142420, 284840.
If you add them up, you will get the total of 285,196. Now subtract 284,840 to get 356,140