Q: What is the sum of all factors of the number 838,401,280 excluding 838,401,280?

A: 1,169,834,852

Why is 1,169,834,852 the sum of all factors of 838,401,280, excluding 838,401,280?

The factors of the number 838,401,280 are: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 655001, 1310002, 2620004, 3275005, 5240008, 6550010, 10480016, 13100020, 20960032, 26200040, 41920064, 52400080, 83840128, 104800160, 167680256, 209600320, 419200640, 838401280.

If you add them up, you will get the total of 838,401,281. Now subtract 838,401,280 to get 1,169,834,852