28858660

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{20323}}^1$

素因数の和:20403

約数の個数: 24

約数和(自身を含む): 61459776

約数和(自身を除く): 32601116

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 20323, 40646, 81292, 101615, 203230, 406460, 1442933, 2885866, 5771732, 7214665, 14429330, 28858660]

約数ペア:

[(1, 28858660), (2, 14429330), (4, 7214665), (5, 5771732), (10, 2885866), (20, 1442933), (71, 406460), (142, 203230), (284, 101615), (355, 81292), (710, 40646), (1420, 20323)]