Q: What is the sum of all factors of the number 205,880 excluding 205,880?
A: 257,440
The factors of the number 205,880 are: 1, 2, 4, 5, 8, 10, 20, 40, 5147, 10294, 20588, 25735, 41176, 51470, 102940, 205880.
If you add them up, you will get the total of 206,137. Now subtract 205,880 to get 257,440