20708910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2111}}^1$

素因数の和:2233

約数の個数: 48

約数和(自身を含む): 54362880

約数和(自身を除く): 33653970

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 109, 218, 327, 545, 654, 981, 1090, 1635, 1962, 2111, 3270, 4222, 4905, 6333, 9810, 10555, 12666, 18999, 21110, 31665, 37998, 63330, 94995, 189990, 230099, 460198, 690297, 1150495, 1380594, 2070891, 2300990, 3451485, 4141782, 6902970, 10354455, 20708910]

約数ペア:

[(1, 20708910), (2, 10354455), (3, 6902970), (5, 4141782), (6, 3451485), (9, 2300990), (10, 2070891), (15, 1380594), (18, 1150495), (30, 690297), (45, 460198), (90, 230099), (109, 189990), (218, 94995), (327, 63330), (545, 37998), (654, 31665), (981, 21110), (1090, 18999), (1635, 12666), (1962, 10555), (2111, 9810), (3270, 6333), (4222, 4905)]