1805140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2099}}^1$

素因数の和:2151

約数の個数: 24

約数和(自身を含む): 3880800

約数和(自身を除く): 2075660

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 2099, 4198, 8396, 10495, 20990, 41980, 90257, 180514, 361028, 451285, 902570, 1805140]

約数ペア:

[(1, 1805140), (2, 902570), (4, 451285), (5, 361028), (10, 180514), (20, 90257), (43, 41980), (86, 20990), (172, 10495), (215, 8396), (430, 4198), (860, 2099)]