Q: What is the sum of all factors of the number 402,740 including 402,740?
A: 911,400
The factors of the number 402,740 are: 1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1549, 3098, 6196, 7745, 15490, 20137, 30980, 40274, 80548, 100685, 201370, 402740.
If you add them up, you will get the total of 911,400.