18905840

素因数分解:

$2^4\times 5^1\times {\mathrm{236323}}^1$

素因数の和:236336

約数の個数: 20

約数和(自身を含む): 43956264

約数和(自身を除く): 25050424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 236323, 472646, 945292, 1181615, 1890584, 2363230, 3781168, 4726460, 9452920, 18905840]

約数ペア:

[(1, 18905840), (2, 9452920), (4, 4726460), (5, 3781168), (8, 2363230), (10, 1890584), (16, 1181615), (20, 945292), (40, 472646), (80, 236323)]