20045828

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{83}}^1\times {\mathrm{499}}^1$

素因数の和:608

約数の個数: 36

約数和(自身を含む): 39102000

約数和(自身を除く): 19056172

約数列:

[1, 2, 4, 11, 22, 44, 83, 121, 166, 242, 332, 484, 499, 913, 998, 1826, 1996, 3652, 5489, 10043, 10978, 20086, 21956, 40172, 41417, 60379, 82834, 120758, 165668, 241516, 455587, 911174, 1822348, 5011457, 10022914, 20045828]

約数ペア:

[(1, 20045828), (2, 10022914), (4, 5011457), (11, 1822348), (22, 911174), (44, 455587), (83, 241516), (121, 165668), (166, 120758), (242, 82834), (332, 60379), (484, 41417), (499, 40172), (913, 21956), (998, 20086), (1826, 10978), (1996, 10043), (3652, 5489)]