Q: What is the sum of all factors of the number 400,123,402 excluding 400,123,402?
A: 304,341,878
The factors of the number 400,123,402 are: 1, 2, 7, 14, 37, 74, 259, 518, 772439, 1544878, 5407073, 10814146, 28580243, 57160486, 200061701, 400123402.
If you add them up, you will get the total of 400,123,706. Now subtract 400,123,402 to get 304,341,878