Q: What is the sum of all factors of the number 256,660 excluding 256,660?
A: 297,236
The factors of the number 256,660 are: 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 313, 410, 626, 820, 1252, 1565, 3130, 6260, 12833, 25666, 51332, 64165, 128330, 256660.
If you add them up, you will get the total of 256,957. Now subtract 256,660 to get 297,236