20178755525

素因数分解:

$5^2\times {\mathrm{6481}}^1\times {\mathrm{124541}}^1$

素因数の和:131032

約数の個数: 12

約数和(自身を含む): 25025718564

約数和(自身を除く): 4846963039

約数列:

[1, 5, 25, 6481, 32405, 124541, 162025, 622705, 3113525, 807150221, 4035751105, 20178755525]

約数ペア:

[(1, 20178755525), (5, 4035751105), (25, 807150221), (6481, 3113525), (32405, 622705), (124541, 162025)]