18079920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{25111}}^1$

素因数の和:25130

約数の個数: 60

約数和(自身を含む): 60720816

約数和(自身を除く): 42640896

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 25111, 50222, 75333, 100444, 125555, 150666, 200888, 225999, 251110, 301332, 376665, 401776, 451998, 502220, 602664, 753330, 903996, 1004440, 1129995, 1205328, 1506660, 1807992, 2008880, 2259990, 3013320, 3615984, 4519980, 6026640, 9039960, 18079920]

約数ペア:

[(1, 18079920), (2, 9039960), (3, 6026640), (4, 4519980), (5, 3615984), (6, 3013320), (8, 2259990), (9, 2008880), (10, 1807992), (12, 1506660), (15, 1205328), (16, 1129995), (18, 1004440), (20, 903996), (24, 753330), (30, 602664), (36, 502220), (40, 451998), (45, 401776), (48, 376665), (60, 301332), (72, 251110), (80, 225999), (90, 200888), (120, 150666), (144, 125555), (180, 100444), (240, 75333), (360, 50222), (720, 25111)]