20400404

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{1429}}^1$

素因数の和:1559

約数の個数: 24

約数和(自身を含む): 36996960

約数和(自身を除く): 16596556

約数列:

[1, 2, 4, 43, 83, 86, 166, 172, 332, 1429, 2858, 3569, 5716, 7138, 14276, 61447, 118607, 122894, 237214, 245788, 474428, 5100101, 10200202, 20400404]

約数ペア:

[(1, 20400404), (2, 10200202), (4, 5100101), (43, 474428), (83, 245788), (86, 237214), (166, 122894), (172, 118607), (332, 61447), (1429, 14276), (2858, 7138), (3569, 5716)]