30703720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{17851}}^1$

素因数の和:17905

約数の個数: 32

約数和(自身を含む): 70693920

約数和(自身を除く): 39990200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 17851, 35702, 71404, 89255, 142808, 178510, 357020, 714040, 767593, 1535186, 3070372, 3837965, 6140744, 7675930, 15351860, 30703720]

約数ペア:

[(1, 30703720), (2, 15351860), (4, 7675930), (5, 6140744), (8, 3837965), (10, 3070372), (20, 1535186), (40, 767593), (43, 714040), (86, 357020), (172, 178510), (215, 142808), (344, 89255), (430, 71404), (860, 35702), (1720, 17851)]