Q: What is the sum of all factors of the number 426,820 including 426,820?
A: 896,364
The factors of the number 426,820 are: 1, 2, 4, 5, 10, 20, 21341, 42682, 85364, 106705, 213410, 426820.
If you add them up, you will get the total of 896,364.