Q: What is the sum of all factors of the number 399,200 including 399,200?
A: 976,500
The factors of the number 399,200 are: 1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 499, 800, 998, 1996, 2495, 3992, 4990, 7984, 9980, 12475, 15968, 19960, 24950, 39920, 49900, 79840, 99800, 199600, 399200.
If you add them up, you will get the total of 976,500.