8996020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{397}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 20861568

約数和(自身を除く): 11865548

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 206, 220, 397, 412, 515, 794, 1030, 1133, 1588, 1985, 2060, 2266, 3970, 4367, 4532, 5665, 7940, 8734, 11330, 17468, 21835, 22660, 40891, 43670, 81782, 87340, 163564, 204455, 408910, 449801, 817820, 899602, 1799204, 2249005, 4498010, 8996020]

約数ペア:

[(1, 8996020), (2, 4498010), (4, 2249005), (5, 1799204), (10, 899602), (11, 817820), (20, 449801), (22, 408910), (44, 204455), (55, 163564), (103, 87340), (110, 81782), (206, 43670), (220, 40891), (397, 22660), (412, 21835), (515, 17468), (794, 11330), (1030, 8734), (1133, 7940), (1588, 5665), (1985, 4532), (2060, 4367), (2266, 3970)]