404789320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{25111}}^1$

素因数の和:25166

約数の個数: 64

約数和(自身を含む): 1012515840

約数和(自身を除く): 607726520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 25111, 50222, 100444, 125555, 200888, 251110, 326443, 502220, 652886, 778441, 1004440, 1305772, 1556882, 1632215, 2611544, 3113764, 3264430, 3892205, 6227528, 6528860, 7784410, 10119733, 13057720, 15568820, 20239466, 31137640, 40478932, 50598665, 80957864, 101197330, 202394660, 404789320]

約数ペア:

[(1, 404789320), (2, 202394660), (4, 101197330), (5, 80957864), (8, 50598665), (10, 40478932), (13, 31137640), (20, 20239466), (26, 15568820), (31, 13057720), (40, 10119733), (52, 7784410), (62, 6528860), (65, 6227528), (104, 3892205), (124, 3264430), (130, 3113764), (155, 2611544), (248, 1632215), (260, 1556882), (310, 1305772), (403, 1004440), (520, 778441), (620, 652886), (806, 502220), (1240, 326443), (1612, 251110), (2015, 200888), (3224, 125555), (4030, 100444), (8060, 50222), (16120, 25111)]