489340

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{569}}^1$

素因数の和:621

約数の個数: 24

約数和(自身を含む): 1053360

約数和(自身を除く): 564020

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 569, 860, 1138, 2276, 2845, 5690, 11380, 24467, 48934, 97868, 122335, 244670, 489340]

約数ペア:

[(1, 489340), (2, 244670), (4, 122335), (5, 97868), (10, 48934), (20, 24467), (43, 11380), (86, 5690), (172, 2845), (215, 2276), (430, 1138), (569, 860)]