123570820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{143687}}^1$

素因数の和:143739

約数の個数: 24

約数和(自身を含む): 265535424

約数和(自身を除く): 141964604

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 143687, 287374, 574748, 718435, 1436870, 2873740, 6178541, 12357082, 24714164, 30892705, 61785410, 123570820]

約数ペア:

[(1, 123570820), (2, 61785410), (4, 30892705), (5, 24714164), (10, 12357082), (20, 6178541), (43, 2873740), (86, 1436870), (172, 718435), (215, 574748), (430, 287374), (860, 143687)]