20378644

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1549}}^1$

素因数の和:1600

約数の個数: 48

約数和(自身を含む): 43747200

約数和(自身を除く): 23368556

約数列:

[1, 2, 4, 11, 13, 22, 23, 26, 44, 46, 52, 92, 143, 253, 286, 299, 506, 572, 598, 1012, 1196, 1549, 3098, 3289, 6196, 6578, 13156, 17039, 20137, 34078, 35627, 40274, 68156, 71254, 80548, 142508, 221507, 391897, 443014, 463151, 783794, 886028, 926302, 1567588, 1852604, 5094661, 10189322, 20378644]

約数ペア:

[(1, 20378644), (2, 10189322), (4, 5094661), (11, 1852604), (13, 1567588), (22, 926302), (23, 886028), (26, 783794), (44, 463151), (46, 443014), (52, 391897), (92, 221507), (143, 142508), (253, 80548), (286, 71254), (299, 68156), (506, 40274), (572, 35627), (598, 34078), (1012, 20137), (1196, 17039), (1549, 13156), (3098, 6578), (3289, 6196)]