Q: What is the sum of all factors of the number 1,408,420 including 1,408,420?
A: 3,185,784
The factors of the number 1,408,420 are: 1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 5417, 10834, 21668, 27085, 54170, 70421, 108340, 140842, 281684, 352105, 704210, 1408420.
If you add them up, you will get the total of 3,185,784.