Q: What is the sum of all factors of the number 871,890 excluding 871,890?
A: 1,220,718
The factors of the number 871,890 are: 1, 2, 3, 5, 6, 10, 15, 30, 29063, 58126, 87189, 145315, 174378, 290630, 435945, 871890.
If you add them up, you will get the total of 871,891. Now subtract 871,890 to get 1,220,718