81137972

素因数分解:

$2^2\times {\mathrm{193}}^1\times {\mathrm{227}}^1\times {\mathrm{463}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 143665536

約数和(自身を除く): 62527564

約数列:

[1, 2, 4, 193, 227, 386, 454, 463, 772, 908, 926, 1852, 43811, 87622, 89359, 105101, 175244, 178718, 210202, 357436, 420404, 20284493, 40568986, 81137972]

約数ペア:

[(1, 81137972), (2, 40568986), (4, 20284493), (193, 420404), (227, 357436), (386, 210202), (454, 178718), (463, 175244), (772, 105101), (908, 89359), (926, 87622), (1852, 43811)]