128786020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{585391}}^1$

素因数の和:585411

約数の個数: 24

約数和(自身を含む): 295037568

約数和(自身を除く): 166251548

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 585391, 1170782, 2341564, 2926955, 5853910, 6439301, 11707820, 12878602, 25757204, 32196505, 64393010, 128786020]

約数ペア:

[(1, 128786020), (2, 64393010), (4, 32196505), (5, 25757204), (10, 12878602), (11, 11707820), (20, 6439301), (22, 5853910), (44, 2926955), (55, 2341564), (110, 1170782), (220, 585391)]