Q: What is the sum of all factors of the number 72,280 excluding 72,280?
A: 104,120
The factors of the number 72,280 are: 1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 139, 260, 278, 520, 556, 695, 1112, 1390, 1807, 2780, 3614, 5560, 7228, 9035, 14456, 18070, 36140, 72280.
If you add them up, you will get the total of 72,384. Now subtract 72,280 to get 104,120