Q: What is the sum of all factors of the number 1,215,890 excluding 1,215,890?
A: 1,203,310
The factors of the number 1,215,890 are: 1, 2, 5, 10, 13, 26, 47, 65, 94, 130, 199, 235, 398, 470, 611, 995, 1222, 1990, 2587, 3055, 5174, 6110, 9353, 12935, 18706, 25870, 46765, 93530, 121589, 243178, 607945, 1215890.
If you add them up, you will get the total of 1,215,891. Now subtract 1,215,890 to get 1,203,310