Q: What is the sum of all factors of the number 1,242,215 excluding 1,242,215?
A: 420,985
The factors of the number 1,242,215 are: 1, 5, 13, 29, 65, 145, 377, 659, 1885, 3295, 8567, 19111, 42835, 95555, 248443, 1242215.
If you add them up, you will get the total of 1,242,635. Now subtract 1,242,215 to get 420,985