Q: What is the sum of all factors of the number 261,020 excluding 261,020?
A: 306,148
The factors of the number 261,020 are: 1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 421, 620, 842, 1684, 2105, 4210, 8420, 13051, 26102, 52204, 65255, 130510, 261020.
If you add them up, you will get the total of 261,326. Now subtract 261,020 to get 306,148