Q: What is the sum of all factors of the number 25,480 including 25,480?

A: 71,820

Why is 71,820 the sum of all factors of 25,480, including 25,480?

The factors of the number 25,480 are: 1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 182, 196, 245, 260, 280, 364, 392, 455, 490, 520, 637, 728, 910, 980, 1274, 1820, 1960, 2548, 3185, 3640, 5096, 6370, 12740, 25480.

If you add them up, you will get the total of 71,820.