20280730085

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{863561}}^1$

素因数の和:863645

約数の個数: 32

約数和(自身を含む): 30839526144

約数和(自身を除く): 10558796059

約数列:

[1, 5, 7, 11, 35, 55, 61, 77, 305, 385, 427, 671, 2135, 3355, 4697, 23485, 863561, 4317805, 6044927, 9499171, 30224635, 47495855, 52677221, 66494197, 263386105, 332470985, 368740547, 579449431, 1843702735, 2897247155, 4056146017, 20280730085]

約数ペア:

[(1, 20280730085), (5, 4056146017), (7, 2897247155), (11, 1843702735), (35, 579449431), (55, 368740547), (61, 332470985), (77, 263386105), (305, 66494197), (385, 52677221), (427, 47495855), (671, 30224635), (2135, 9499171), (3355, 6044927), (4697, 4317805), (23485, 863561)]