18931180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22013}}^1$

素因数の和:22065

約数の個数: 24

約数和(自身を含む): 40681872

約数和(自身を除く): 21750692

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 22013, 44026, 88052, 110065, 220130, 440260, 946559, 1893118, 3786236, 4732795, 9465590, 18931180]

約数ペア:

[(1, 18931180), (2, 9465590), (4, 4732795), (5, 3786236), (10, 1893118), (20, 946559), (43, 440260), (86, 220130), (172, 110065), (215, 88052), (430, 44026), (860, 22013)]