Q: What is the sum of all factors of the number 780 including 780?
A: 2,352
The factors of the number 780 are: 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780.
If you add them up, you will get the total of 2,352.