28289780

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{6343}}^1$

素因数の和:6575

約数の個数: 24

約数和(自身を含む): 59684352

約数和(自身を除く): 31394572

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 6343, 12686, 25372, 31715, 63430, 126860, 1414489, 2828978, 5657956, 7072445, 14144890, 28289780]

約数ペア:

[(1, 28289780), (2, 14144890), (4, 7072445), (5, 5657956), (10, 2828978), (20, 1414489), (223, 126860), (446, 63430), (892, 31715), (1115, 25372), (2230, 12686), (4460, 6343)]