Q: What is the sum of all factors of the number 405,980 excluding 405,980?
A: 464,932
The factors of the number 405,980 are: 1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 383, 530, 766, 1060, 1532, 1915, 3830, 7660, 20299, 40598, 81196, 101495, 202990, 405980.
If you add them up, you will get the total of 406,444. Now subtract 405,980 to get 464,932