18379980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{337}}^1$

素因数の和:456

約数の個数: 96

約数和(自身を含む): 57919680

約数和(自身を除く): 39539700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 101, 108, 135, 180, 202, 270, 303, 337, 404, 505, 540, 606, 674, 909, 1010, 1011, 1212, 1348, 1515, 1685, 1818, 2020, 2022, 2727, 3030, 3033, 3370, 3636, 4044, 4545, 5055, 5454, 6060, 6066, 6740, 9090, 9099, 10110, 10908, 12132, 13635, 15165, 18180, 18198, 20220, 27270, 30330, 34037, 36396, 45495, 54540, 60660, 68074, 90990, 102111, 136148, 170185, 181980, 204222, 306333, 340370, 408444, 510555, 612666, 680740, 918999, 1021110, 1225332, 1531665, 1837998, 2042220, 3063330, 3675996, 4594995, 6126660, 9189990, 18379980]

約数ペア:

[(1, 18379980), (2, 9189990), (3, 6126660), (4, 4594995), (5, 3675996), (6, 3063330), (9, 2042220), (10, 1837998), (12, 1531665), (15, 1225332), (18, 1021110), (20, 918999), (27, 680740), (30, 612666), (36, 510555), (45, 408444), (54, 340370), (60, 306333), (90, 204222), (101, 181980), (108, 170185), (135, 136148), (180, 102111), (202, 90990), (270, 68074), (303, 60660), (337, 54540), (404, 45495), (505, 36396), (540, 34037), (606, 30330), (674, 27270), (909, 20220), (1010, 18198), (1011, 18180), (1212, 15165), (1348, 13635), (1515, 12132), (1685, 10908), (1818, 10110), (2020, 9099), (2022, 9090), (2727, 6740), (3030, 6066), (3033, 6060), (3370, 5454), (3636, 5055), (4044, 4545)]