18705740

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{8741}}^1$

素因数の和:8857

約数の個数: 24

約数和(自身を含む): 39653712

約数和(自身を除く): 20947972

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 8741, 17482, 34964, 43705, 87410, 174820, 935287, 1870574, 3741148, 4676435, 9352870, 18705740]

約数ペア:

[(1, 18705740), (2, 9352870), (4, 4676435), (5, 3741148), (10, 1870574), (20, 935287), (107, 174820), (214, 87410), (428, 43705), (535, 34964), (1070, 17482), (2140, 8741)]