81822390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{209801}}^1$

素因数の和:209824

約数の個数: 32

約数和(自身を含む): 211480416

約数和(自身を除く): 129658026

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 209801, 419602, 629403, 1049005, 1258806, 2098010, 2727413, 3147015, 5454826, 6294030, 8182239, 13637065, 16364478, 27274130, 40911195, 81822390]

約数ペア:

[(1, 81822390), (2, 40911195), (3, 27274130), (5, 16364478), (6, 13637065), (10, 8182239), (13, 6294030), (15, 5454826), (26, 3147015), (30, 2727413), (39, 2098010), (65, 1258806), (78, 1049005), (130, 629403), (195, 419602), (390, 209801)]