Q: What is the sum of all factors of the number 145,509 excluding 145,509?
A: 100,443
The factors of the number 145,509 are: 1, 3, 7, 13, 21, 39, 41, 91, 123, 169, 273, 287, 507, 533, 861, 1183, 1599, 3549, 3731, 6929, 11193, 20787, 48503, 145509.
If you add them up, you will get the total of 145,609. Now subtract 145,509 to get 100,443