18659240

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{2417}}^1$

素因数の和:2621

約数の個数: 32

約数和(自身を含む): 42218280

約数和(自身を除く): 23559040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 2417, 3860, 4834, 7720, 9668, 12085, 19336, 24170, 48340, 96680, 466481, 932962, 1865924, 2332405, 3731848, 4664810, 9329620, 18659240]

約数ペア:

[(1, 18659240), (2, 9329620), (4, 4664810), (5, 3731848), (8, 2332405), (10, 1865924), (20, 932962), (40, 466481), (193, 96680), (386, 48340), (772, 24170), (965, 19336), (1544, 12085), (1930, 9668), (2417, 7720), (3860, 4834)]