Q: What is the sum of all factors of the number 406,945 excluding 406,945?
A: 216,863
The factors of the number 406,945 are: 1, 5, 7, 11, 35, 49, 55, 77, 151, 245, 385, 539, 755, 1057, 1661, 2695, 5285, 7399, 8305, 11627, 36995, 58135, 81389, 406945.
If you add them up, you will get the total of 407,161. Now subtract 406,945 to get 216,863