Q: What is the sum of all factors of the number 129,040 excluding 129,040?
A: 171,164
The factors of the number 129,040 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1613, 3226, 6452, 8065, 12904, 16130, 25808, 32260, 64520, 129040.
If you add them up, you will get the total of 129,211. Now subtract 129,040 to get 171,164