20565500905

素因数分解:

$5^1\times {\mathrm{31}}^2\times {\mathrm{4280021}}^1$

素因数の和:4280088

約数の個数: 12

約数和(自身を含む): 25500371076

約数和(自身を除く): 4934870171

約数列:

[1, 5, 31, 155, 961, 4805, 4280021, 21400105, 132680651, 663403255, 4113100181, 20565500905]

約数ペア:

[(1, 20565500905), (5, 4113100181), (31, 663403255), (155, 132680651), (961, 21400105), (4805, 4280021)]