Q: What is the sum of all factors of the number 1,800,390 excluding 1,800,390?
A: 2,520,618
The factors of the number 1,800,390 are: 1, 2, 3, 5, 6, 10, 15, 30, 60013, 120026, 180039, 300065, 360078, 600130, 900195, 1800390.
If you add them up, you will get the total of 1,800,392. Now subtract 1,800,390 to get 2,520,618