218472020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{840277}}^1$

素因数の和:840299

約数の個数: 24

約数和(自身を含む): 494083464

約数和(自身を除く): 275611444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 840277, 1680554, 3361108, 4201385, 8402770, 10923601, 16805540, 21847202, 43694404, 54618005, 109236010, 218472020]

約数ペア:

[(1, 218472020), (2, 109236010), (4, 54618005), (5, 43694404), (10, 21847202), (13, 16805540), (20, 10923601), (26, 8402770), (52, 4201385), (65, 3361108), (130, 1680554), (260, 840277)]