87739780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{102023}}^1$

素因数の和:102075

約数の個数: 24

約数和(自身を含む): 188540352

約数和(自身を除く): 100800572

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 102023, 204046, 408092, 510115, 1020230, 2040460, 4386989, 8773978, 17547956, 21934945, 43869890, 87739780]

約数ペア:

[(1, 87739780), (2, 43869890), (4, 21934945), (5, 17547956), (10, 8773978), (20, 4386989), (43, 2040460), (86, 1020230), (172, 510115), (215, 408092), (430, 204046), (860, 102023)]