18455860

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{12641}}^1$

素因数の和:12723

約数の個数: 24

約数和(自身を含む): 39291336

約数和(自身を除く): 20835476

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 12641, 25282, 50564, 63205, 126410, 252820, 922793, 1845586, 3691172, 4613965, 9227930, 18455860]

約数ペア:

[(1, 18455860), (2, 9227930), (4, 4613965), (5, 3691172), (10, 1845586), (20, 922793), (73, 252820), (146, 126410), (292, 63205), (365, 50564), (730, 25282), (1460, 12641)]