Q: What is the sum of all factors of the number 401,115 excluding 401,115?

A: 403,269

Why is 403,269 the sum of all factors of 401,115, excluding 401,115?

The factors of the number 401,115 are: 1, 3, 5, 11, 13, 15, 17, 33, 39, 51, 55, 65, 85, 121, 143, 165, 187, 195, 221, 255, 363, 429, 561, 605, 663, 715, 935, 1105, 1573, 1815, 2057, 2145, 2431, 2805, 3315, 4719, 6171, 7293, 7865, 10285, 12155, 23595, 26741, 30855, 36465, 80223, 133705, 401115.

If you add them up, you will get the total of 401,518. Now subtract 401,115 to get 403,269