20180719980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1028579}}^1$

素因数の和:1028703

約数の個数: 72

約数和(自身を含む): 61776514800

約数和(自身を除く): 41595794820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 436, 545, 654, 981, 1090, 1308, 1635, 1962, 2180, 3270, 3924, 4905, 6540, 9810, 19620, 1028579, 2057158, 3085737, 4114316, 5142895, 6171474, 9257211, 10285790, 12342948, 15428685, 18514422, 20571580, 30857370, 37028844, 46286055, 61714740, 92572110, 112115111, 185144220, 224230222, 336345333, 448460444, 560575555, 672690666, 1009035999, 1121151110, 1345381332, 1681726665, 2018071998, 2242302220, 3363453330, 4036143996, 5045179995, 6726906660, 10090359990, 20180719980]

約数ペア:

[(1, 20180719980), (2, 10090359990), (3, 6726906660), (4, 5045179995), (5, 4036143996), (6, 3363453330), (9, 2242302220), (10, 2018071998), (12, 1681726665), (15, 1345381332), (18, 1121151110), (20, 1009035999), (30, 672690666), (36, 560575555), (45, 448460444), (60, 336345333), (90, 224230222), (109, 185144220), (180, 112115111), (218, 92572110), (327, 61714740), (436, 46286055), (545, 37028844), (654, 30857370), (981, 20571580), (1090, 18514422), (1308, 15428685), (1635, 12342948), (1962, 10285790), (2180, 9257211), (3270, 6171474), (3924, 5142895), (4905, 4114316), (6540, 3085737), (9810, 2057158), (19620, 1028579)]