Q: What is the sum of all factors of the number 256,843,778 excluding 256,843,778?

A: 152,121,982

Why is 152,121,982 the sum of all factors of 256,843,778, excluding 256,843,778?

The factors of the number 256,843,778 are: 1, 2, 29, 58, 71, 97, 142, 194, 643, 1286, 2059, 2813, 4118, 5626, 6887, 13774, 18647, 37294, 45653, 62371, 91306, 124742, 199723, 399446, 1323937, 1808759, 2647874, 3617518, 4428341, 8856682, 128421889, 256843778.

If you add them up, you will get the total of 256,843,930. Now subtract 256,843,778 to get 152,121,982