20299940

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{2221}}^1$

素因数の和:2687

約数の個数: 24

約数和(自身を含む): 42742392

約数和(自身を除く): 22442452

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1828, 2221, 2285, 4442, 4570, 8884, 9140, 11105, 22210, 44420, 1014997, 2029994, 4059988, 5074985, 10149970, 20299940]

約数ペア:

[(1, 20299940), (2, 10149970), (4, 5074985), (5, 4059988), (10, 2029994), (20, 1014997), (457, 44420), (914, 22210), (1828, 11105), (2221, 9140), (2285, 8884), (4442, 4570)]