20914840

素因数分解:

$2^3\times 5^1\times {\mathrm{522871}}^1$

素因数の和:522882

約数の個数: 16

約数和(自身を含む): 47058480

約数和(自身を除く): 26143640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 522871, 1045742, 2091484, 2614355, 4182968, 5228710, 10457420, 20914840]

約数ペア:

[(1, 20914840), (2, 10457420), (4, 5228710), (5, 4182968), (8, 2614355), (10, 2091484), (20, 1045742), (40, 522871)]