Q: What is the sum of all factors of the number 1,640,145 excluding 1,640,145?
A: 1,205,871
The factors of the number 1,640,145 are: 1, 3, 5, 13, 15, 39, 65, 169, 195, 507, 647, 845, 1941, 2535, 3235, 8411, 9705, 25233, 42055, 109343, 126165, 328029, 546715, 1640145.
If you add them up, you will get the total of 1,640,146. Now subtract 1,640,145 to get 1,205,871