Q: What is the sum of all factors of the number 821,080 excluding 821,080?
A: 1,169,720
The factors of the number 821,080 are: 1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1579, 3158, 6316, 7895, 12632, 15790, 20527, 31580, 41054, 63160, 82108, 102635, 164216, 205270, 410540, 821080.
If you add them up, you will get the total of 821,081. Now subtract 821,080 to get 1,169,720