387340

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:297

約数の個数: 24

約数和(自身を含む): 825552

約数和(自身を除く): 438212

約数列:

[1, 2, 4, 5, 10, 20, 107, 181, 214, 362, 428, 535, 724, 905, 1070, 1810, 2140, 3620, 19367, 38734, 77468, 96835, 193670, 387340]

約数ペア:

[(1, 387340), (2, 193670), (4, 96835), (5, 77468), (10, 38734), (20, 19367), (107, 3620), (181, 2140), (214, 1810), (362, 1070), (428, 905), (535, 724)]