Q: What is the sum of all factors of the number 419,890 excluding 419,890?
A: 343,310
The factors of the number 419,890 are: 1, 2, 5, 10, 199, 211, 398, 422, 995, 1055, 1990, 2110, 41989, 83978, 209945, 419890.
If you add them up, you will get the total of 420,233. Now subtract 419,890 to get 343,310