Q: What is the sum of all factors of the number 3,920 including 3,920?
A: 10,602
The factors of the number 3,920 are: 1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920.
If you add them up, you will get the total of 10,602.