18667160

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10853}}^1$

素因数の和:10907

約数の個数: 32

約数和(自身を含む): 42981840

約数和(自身を除く): 24314680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 10853, 21706, 43412, 54265, 86824, 108530, 217060, 434120, 466679, 933358, 1866716, 2333395, 3733432, 4666790, 9333580, 18667160]

約数ペア:

[(1, 18667160), (2, 9333580), (4, 4666790), (5, 3733432), (8, 2333395), (10, 1866716), (20, 933358), (40, 466679), (43, 434120), (86, 217060), (172, 108530), (215, 86824), (344, 54265), (430, 43412), (860, 21706), (1720, 10853)]