Q: What is the sum of all factors of the number 345,220 excluding 345,220?
A: 399,188
The factors of the number 345,220 are: 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 421, 820, 842, 1684, 2105, 4210, 8420, 17261, 34522, 69044, 86305, 172610, 345220.
If you add them up, you will get the total of 345,619. Now subtract 345,220 to get 399,188