12990097975

素因数分解:

$5^2\times {\mathrm{7109}}^1\times {\mathrm{73091}}^1$

素因数の和:80210

約数の個数: 12

約数和(自身を含む): 16110207720

約数和(自身を除く): 3120109745

約数列:

[1, 5, 25, 7109, 35545, 73091, 177725, 365455, 1827275, 519603919, 2598019595, 12990097975]

約数ペア:

[(1, 12990097975), (5, 2598019595), (25, 519603919), (7109, 1827275), (35545, 365455), (73091, 177725)]