Q: What is the sum of all factors of the number 386,890 excluding 386,890?
A: 409,142
The factors of the number 386,890 are: 1, 2, 5, 7, 10, 14, 35, 70, 5527, 11054, 27635, 38689, 55270, 77378, 193445, 386890.
If you add them up, you will get the total of 387,299. Now subtract 386,890 to get 409,142