Q: What is the sum of all factors of the number 305,440 excluding 305,440?

A: 456,608

Why is 456,608 the sum of all factors of 305,440, excluding 305,440?

The factors of the number 305,440 are: 1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 83, 92, 115, 160, 166, 184, 230, 332, 368, 415, 460, 664, 736, 830, 920, 1328, 1660, 1840, 1909, 2656, 3320, 3680, 3818, 6640, 7636, 9545, 13280, 15272, 19090, 30544, 38180, 61088, 76360, 152720, 305440.

If you add them up, you will get the total of 305,896. Now subtract 305,440 to get 456,608