18505840

素因数分解:

$2^4\times 5^1\times {\mathrm{231323}}^1$

素因数の和:231336

約数の個数: 20

約数和(自身を含む): 43026264

約数和(自身を除く): 24520424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 231323, 462646, 925292, 1156615, 1850584, 2313230, 3701168, 4626460, 9252920, 18505840]

約数ペア:

[(1, 18505840), (2, 9252920), (4, 4626460), (5, 3701168), (8, 2313230), (10, 1850584), (16, 1156615), (20, 925292), (40, 462646), (80, 231323)]