19890097925

素因数分解:

$5^2\times {\mathrm{1231}}^1\times {\mathrm{646307}}^1$

素因数の和:647548

約数の個数: 12

約数和(自身を含む): 24683795136

約数和(自身を除く): 4793697211

約数列:

[1, 5, 25, 1231, 6155, 30775, 646307, 3231535, 16157675, 795603917, 3978019585, 19890097925]

約数ペア:

[(1, 19890097925), (5, 3978019585), (25, 795603917), (1231, 16157675), (6155, 3231535), (30775, 646307)]