Q: What is the sum of all factors of the number 390,144 excluding 390,144?

A: 657,920

Why is 657,920 the sum of all factors of 390,144, excluding 390,144?

The factors of the number 390,144 are: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 127, 128, 192, 254, 256, 381, 384, 508, 512, 762, 768, 1016, 1024, 1524, 1536, 2032, 3048, 3072, 4064, 6096, 8128, 12192, 16256, 24384, 32512, 48768, 65024, 97536, 130048, 195072, 390144.

If you add them up, you will get the total of 390,801. Now subtract 390,144 to get 657,920