8538978020

素因数分解:

$2^2\times 5^1\times {\mathrm{22639}}^1\times {\mathrm{18859}}^1$

素因数の和:41507

約数の個数: 24

約数和(自身を含む): 17933596800

約数和(自身を除く): 9394618780

約数列:

[1, 2, 4, 5, 10, 20, 18859, 22639, 37718, 45278, 75436, 90556, 94295, 113195, 188590, 226390, 377180, 452780, 426948901, 853897802, 1707795604, 2134744505, 4269489010, 8538978020]

約数ペア:

[(1, 8538978020), (2, 4269489010), (4, 2134744505), (5, 1707795604), (10, 853897802), (20, 426948901), (18859, 452780), (22639, 377180), (37718, 226390), (45278, 188590), (75436, 113195), (90556, 94295)]