85481420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{99397}}^1$

素因数の和:99449

約数の個数: 24

約数和(自身を含む): 183687504

約数和(自身を除く): 98206084

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 99397, 198794, 397588, 496985, 993970, 1987940, 4274071, 8548142, 17096284, 21370355, 42740710, 85481420]

約数ペア:

[(1, 85481420), (2, 42740710), (4, 21370355), (5, 17096284), (10, 8548142), (20, 4274071), (43, 1987940), (86, 993970), (172, 496985), (215, 397588), (430, 198794), (860, 99397)]