20179980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{112111}}^1$

素因数の和:112126

約数の個数: 36

約数和(自身を含む): 61213152

約数和(自身を除く): 41033172

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 112111, 224222, 336333, 448444, 560555, 672666, 1008999, 1121110, 1345332, 1681665, 2017998, 2242220, 3363330, 4035996, 5044995, 6726660, 10089990, 20179980]

約数ペア:

[(1, 20179980), (2, 10089990), (3, 6726660), (4, 5044995), (5, 4035996), (6, 3363330), (9, 2242220), (10, 2017998), (12, 1681665), (15, 1345332), (18, 1121110), (20, 1008999), (30, 672666), (36, 560555), (45, 448444), (60, 336333), (90, 224222), (180, 112111)]