Q: What is the sum of all factors of the number 310,423,505 excluding 310,423,505?

A: 129,145,135

Why is 129,145,135 the sum of all factors of 310,423,505, excluding 310,423,505?

The factors of the number 310,423,505 are: 1, 5, 7, 35, 41, 137, 205, 287, 685, 959, 1435, 1579, 4795, 5617, 7895, 11053, 28085, 39319, 55265, 64739, 196595, 216323, 323695, 453173, 1081615, 1514261, 2265865, 7571305, 8869243, 44346215, 62084701, 310423505.

If you add them up, you will get the total of 310,423,634. Now subtract 310,423,505 to get 129,145,135