18380540

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{2011}}^1$

素因数の和:2477

約数の個数: 24

約数和(自身を含む): 38702832

約数和(自身を除く): 20322292

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1828, 2011, 2285, 4022, 4570, 8044, 9140, 10055, 20110, 40220, 919027, 1838054, 3676108, 4595135, 9190270, 18380540]

約数ペア:

[(1, 18380540), (2, 9190270), (4, 4595135), (5, 3676108), (10, 1838054), (20, 919027), (457, 40220), (914, 20110), (1828, 10055), (2011, 9140), (2285, 8044), (4022, 4570)]