18324440

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2531}}^1$

素因数の和:2723

約数の個数: 32

約数和(自身を含む): 41474160

約数和(自身を除く): 23149720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 2531, 3620, 5062, 7240, 10124, 12655, 20248, 25310, 50620, 101240, 458111, 916222, 1832444, 2290555, 3664888, 4581110, 9162220, 18324440]

約数ペア:

[(1, 18324440), (2, 9162220), (4, 4581110), (5, 3664888), (8, 2290555), (10, 1832444), (20, 916222), (40, 458111), (181, 101240), (362, 50620), (724, 25310), (905, 20248), (1448, 12655), (1810, 10124), (2531, 7240), (3620, 5062)]