Q: What is the sum of all factors of the number 1,801,420 excluding 1,801,420?
A: 1,981,604
The factors of the number 1,801,420 are: 1, 2, 4, 5, 10, 20, 90071, 180142, 360284, 450355, 900710, 1801420.
If you add them up, you will get the total of 1,801,421. Now subtract 1,801,420 to get 1,981,604