Q: What is the sum of all factors of the number 2,890 excluding 2,890?
A: 2,636
The factors of the number 2,890 are: 1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890.
If you add them up, you will get the total of 2,892. Now subtract 2,890 to get 2,636