Q: What is the sum of all factors of the number 400,478 excluding 400,478?
A: 258,418
The factors of the number 400,478 are: 1, 2, 13, 26, 73, 146, 211, 422, 949, 1898, 2743, 5486, 15403, 30806, 200239, 400478.
If you add them up, you will get the total of 400,736. Now subtract 400,478 to get 258,418