Q: What is the sum of all factors of the number 1,291,225 excluding 1,291,225?
A: 505,535
The factors of the number 1,291,225 are: 1, 5, 13, 25, 29, 65, 137, 145, 325, 377, 685, 725, 1781, 1885, 3425, 3973, 8905, 9425, 19865, 44525, 51649, 99325, 258245, 1291225.
If you add them up, you will get the total of 1,291,730. Now subtract 1,291,225 to get 505,535