Q: What is the sum of all factors of the number 561,318,075 excluding 561,318,075?

A: 447,236,173

Why is 447,236,173 the sum of all factors of 561,318,075, excluding 561,318,075?

The factors of the number 561,318,075 are: 1, 3, 5, 9, 15, 25, 45, 75, 225, 331, 993, 1655, 2979, 4965, 7537, 8275, 14895, 22611, 24825, 37685, 67833, 74475, 113055, 188425, 339165, 565275, 1695825, 2494747, 7484241, 12473735, 22452723, 37421205, 62368675, 112263615, 187106025, 561318075.

If you add them up, you will get the total of 561,318,522. Now subtract 561,318,075 to get 447,236,173