20796660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3727}}^1$

素因数の和:3773

約数の個数: 72

約数和(自身を含む): 65135616

約数和(自身を除く): 44338956

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 3727, 5580, 7454, 11181, 14908, 18635, 22362, 33543, 37270, 44724, 55905, 67086, 74540, 111810, 115537, 134172, 167715, 223620, 231074, 335430, 346611, 462148, 577685, 670860, 693222, 1039833, 1155370, 1386444, 1733055, 2079666, 2310740, 3466110, 4159332, 5199165, 6932220, 10398330, 20796660]

約数ペア:

[(1, 20796660), (2, 10398330), (3, 6932220), (4, 5199165), (5, 4159332), (6, 3466110), (9, 2310740), (10, 2079666), (12, 1733055), (15, 1386444), (18, 1155370), (20, 1039833), (30, 693222), (31, 670860), (36, 577685), (45, 462148), (60, 346611), (62, 335430), (90, 231074), (93, 223620), (124, 167715), (155, 134172), (180, 115537), (186, 111810), (279, 74540), (310, 67086), (372, 55905), (465, 44724), (558, 37270), (620, 33543), (930, 22362), (1116, 18635), (1395, 14908), (1860, 11181), (2790, 7454), (3727, 5580)]