Q: What is the sum of all factors of the number 342,820 excluding 342,820?
A: 391,508
The factors of the number 342,820 are: 1, 2, 4, 5, 10, 20, 61, 122, 244, 281, 305, 562, 610, 1124, 1220, 1405, 2810, 5620, 17141, 34282, 68564, 85705, 171410, 342820.
If you add them up, you will get the total of 343,211. Now subtract 342,820 to get 391,508