Q: What is the sum of all factors of the number 181,220 excluding 181,220?

A: 263,308

Why is 263,308 the sum of all factors of 181,220, excluding 181,220?

The factors of the number 181,220 are: 1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 41, 52, 65, 68, 82, 85, 130, 164, 170, 205, 221, 260, 340, 410, 442, 533, 697, 820, 884, 1066, 1105, 1394, 2132, 2210, 2665, 2788, 3485, 4420, 5330, 6970, 9061, 10660, 13940, 18122, 36244, 45305, 90610, 181220.

If you add them up, you will get the total of 181,483. Now subtract 181,220 to get 263,308