Q: What is the sum of all factors of the number 261,040 including 261,040?

A: 656,208

Why is 656,208 the sum of all factors of 261,040, including 261,040?

The factors of the number 261,040 are: 1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 251, 260, 502, 520, 1004, 1040, 1255, 2008, 2510, 3263, 4016, 5020, 6526, 10040, 13052, 16315, 20080, 26104, 32630, 52208, 65260, 130520, 261040.

If you add them up, you will get the total of 656,208.