71396640008

素因数分解:

$2^3\times {\mathrm{409}}^1\times {\mathrm{21820489}}^1$

素因数の和:21820904

約数の個数: 16

約数和(自身を含む): 134196013500

約数和(自身を除く): 62799373492

約数列:

[1, 2, 4, 8, 409, 818, 1636, 3272, 21820489, 43640978, 87281956, 174563912, 8924580001, 17849160002, 35698320004, 71396640008]

約数ペア:

[(1, 71396640008), (2, 35698320004), (4, 17849160002), (8, 8924580001), (409, 174563912), (818, 87281956), (1636, 43640978), (3272, 21820489)]