129219905

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^2\times {\mathrm{101}}^1$

素因数の和:305

約数の個数: 24

約数和(自身を含む): 162474984

約数和(自身を除く): 33255079

約数列:

[1, 5, 41, 79, 101, 205, 395, 505, 3239, 4141, 6241, 7979, 16195, 20705, 31205, 39895, 255881, 327139, 630341, 1279405, 1635695, 3151705, 25843981, 129219905]

約数ペア:

[(1, 129219905), (5, 25843981), (41, 3151705), (79, 1635695), (101, 1279405), (205, 630341), (395, 327139), (505, 255881), (3239, 39895), (4141, 31205), (6241, 20705), (7979, 16195)]