Q: What is the sum of all factors of the number 256,520 including 256,520?

A: 646,380

Why is 646,380 the sum of all factors of 256,520, including 256,520?

The factors of the number 256,520 are: 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 53, 55, 88, 106, 110, 121, 212, 220, 242, 265, 424, 440, 484, 530, 583, 605, 968, 1060, 1166, 1210, 2120, 2332, 2420, 2915, 4664, 4840, 5830, 6413, 11660, 12826, 23320, 25652, 32065, 51304, 64130, 128260, 256520.

If you add them up, you will get the total of 646,380.