1640252020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7455691}}^1$

素因数の和:7455711

約数の個数: 24

約数和(自身を含む): 3757668768

約数和(自身を除く): 2117416748

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 7455691, 14911382, 29822764, 37278455, 74556910, 82012601, 149113820, 164025202, 328050404, 410063005, 820126010, 1640252020]

約数ペア:

[(1, 1640252020), (2, 820126010), (4, 410063005), (5, 328050404), (10, 164025202), (11, 149113820), (20, 82012601), (22, 74556910), (44, 37278455), (55, 29822764), (110, 14911382), (220, 7455691)]