81739988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{5323}}^1$

素因数の和:5687

約数の個数: 24

約数和(自身を含む): 156525600

約数和(自身を除く): 74785612

約数列:

[1, 2, 4, 11, 22, 44, 349, 698, 1396, 3839, 5323, 7678, 10646, 15356, 21292, 58553, 117106, 234212, 1857727, 3715454, 7430908, 20434997, 40869994, 81739988]

約数ペア:

[(1, 81739988), (2, 40869994), (4, 20434997), (11, 7430908), (22, 3715454), (44, 1857727), (349, 234212), (698, 117106), (1396, 58553), (3839, 21292), (5323, 15356), (7678, 10646)]