18564780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23801}}^1$

素因数の和:23826

約数の個数: 48

約数和(自身を含む): 55982304

約数和(自身を除く): 37417524

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 23801, 47602, 71403, 95204, 119005, 142806, 238010, 285612, 309413, 357015, 476020, 618826, 714030, 928239, 1237652, 1428060, 1547065, 1856478, 3094130, 3712956, 4641195, 6188260, 9282390, 18564780]

約数ペア:

[(1, 18564780), (2, 9282390), (3, 6188260), (4, 4641195), (5, 3712956), (6, 3094130), (10, 1856478), (12, 1547065), (13, 1428060), (15, 1237652), (20, 928239), (26, 714030), (30, 618826), (39, 476020), (52, 357015), (60, 309413), (65, 285612), (78, 238010), (130, 142806), (156, 119005), (195, 95204), (260, 71403), (390, 47602), (780, 23801)]