Q: What is the sum of all factors of the number 421,043,140 excluding 421,043,140?

A: 602,278,460

Why is 602,278,460 the sum of all factors of 421,043,140, excluding 421,043,140?

The factors of the number 421,043,140 are: 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 2212, 2765, 5530, 11060, 38069, 76138, 152276, 190345, 266483, 380690, 532966, 761380, 1065932, 1332415, 2664830, 3007451, 5329660, 6014902, 12029804, 15037255, 21052157, 30074510, 42104314, 60149020, 84208628, 105260785, 210521570, 421043140.

If you add them up, you will get the total of 421,043,742. Now subtract 421,043,140 to get 602,278,460