21890458360

素因数分解:

$2^3\times 5^1\times {\mathrm{547261459}}^1$

素因数の和:547261470

約数の個数: 16

約数和(自身を含む): 49253531400

約数和(自身を除く): 27363073040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 547261459, 1094522918, 2189045836, 2736307295, 4378091672, 5472614590, 10945229180, 21890458360]

約数ペア:

[(1, 21890458360), (2, 10945229180), (4, 5472614590), (5, 4378091672), (8, 2736307295), (10, 2189045836), (20, 1094522918), (40, 547261459)]