Q: What is the sum of all factors of the number 256,404,040 excluding 256,404,040?

A: 324,339,320

Why is 324,339,320 the sum of all factors of 256,404,040, excluding 256,404,040?

The factors of the number 256,404,040 are: 1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 3020, 6040, 42451, 84902, 169804, 212255, 339608, 424510, 849020, 1698040, 6410101, 12820202, 25640404, 32050505, 51280808, 64101010, 128202020, 256404040.

If you add them up, you will get the total of 256,404,364. Now subtract 256,404,040 to get 324,339,320