20365405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{911}}^1$

素因数の和:1196

約数の個数: 16

約数和(自身を含む): 26002944

約数和(自身を除く): 5637539

約数列:

[1, 5, 17, 85, 263, 911, 1315, 4471, 4555, 15487, 22355, 77435, 239593, 1197965, 4073081, 20365405]

約数ペア:

[(1, 20365405), (5, 4073081), (17, 1197965), (85, 239593), (263, 77435), (911, 22355), (1315, 15487), (4471, 4555)]