Q: What is the sum of all factors of the number 155,540 excluding 155,540?

A: 255,724

Why is 255,724 the sum of all factors of 155,540, excluding 155,540?

The factors of the number 155,540 are: 1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 101, 110, 140, 154, 202, 220, 308, 385, 404, 505, 707, 770, 1010, 1111, 1414, 1540, 2020, 2222, 2828, 3535, 4444, 5555, 7070, 7777, 11110, 14140, 15554, 22220, 31108, 38885, 77770, 155540.

If you add them up, you will get the total of 155,795. Now subtract 155,540 to get 255,724