18906460

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{1787}}^1$

素因数の和:1842

約数の個数: 36

約数和(自身を含む): 41528088

約数和(自身を除く): 22621628

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 529, 1058, 1787, 2116, 2645, 3574, 5290, 7148, 8935, 10580, 17870, 35740, 41101, 82202, 164404, 205505, 411010, 822020, 945323, 1890646, 3781292, 4726615, 9453230, 18906460]

約数ペア:

[(1, 18906460), (2, 9453230), (4, 4726615), (5, 3781292), (10, 1890646), (20, 945323), (23, 822020), (46, 411010), (92, 205505), (115, 164404), (230, 82202), (460, 41101), (529, 35740), (1058, 17870), (1787, 10580), (2116, 8935), (2645, 7148), (3574, 5290)]