Q: What is the sum of all factors of the number 21,080 excluding 21,080?
A: 30,760
The factors of the number 21,080 are: 1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 85, 124, 136, 155, 170, 248, 310, 340, 527, 620, 680, 1054, 1240, 2108, 2635, 4216, 5270, 10540, 21080.
If you add them up, you will get the total of 21,110. Now subtract 21,080 to get 30,760