89997170

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{21377}}^1$

素因数の和:21805

約数の個数: 16

約数和(自身を含む): 162387288

約数和(自身を除く): 72390118

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 21377, 42754, 106885, 213770, 8999717, 17999434, 44998585, 89997170]

約数ペア:

[(1, 89997170), (2, 44998585), (5, 17999434), (10, 8999717), (421, 213770), (842, 106885), (2105, 42754), (4210, 21377)]