668367740

素因数分解:

$2^2\times 5^1\times {\mathrm{1669}}^1\times {\mathrm{20023}}^1$

素因数の和:21701

約数の個数: 24

約数和(自身を含む): 1404483360

約数和(自身を除く): 736115620

約数列:

[1, 2, 4, 5, 10, 20, 1669, 3338, 6676, 8345, 16690, 20023, 33380, 40046, 80092, 100115, 200230, 400460, 33418387, 66836774, 133673548, 167091935, 334183870, 668367740]

約数ペア:

[(1, 668367740), (2, 334183870), (4, 167091935), (5, 133673548), (10, 66836774), (20, 33418387), (1669, 400460), (3338, 200230), (6676, 100115), (8345, 80092), (16690, 40046), (20023, 33380)]