18922580

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22003}}^1$

素因数の和:22055

約数の個数: 24

約数和(自身を含む): 40663392

約数和(自身を除く): 21740812

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 22003, 44006, 88012, 110015, 220030, 440060, 946129, 1892258, 3784516, 4730645, 9461290, 18922580]

約数ペア:

[(1, 18922580), (2, 9461290), (4, 4730645), (5, 3784516), (10, 1892258), (20, 946129), (43, 440060), (86, 220030), (172, 110015), (215, 88012), (430, 44006), (860, 22003)]