40239518

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{257}}^1\times {\mathrm{647}}^1$

素因数の和:928

約数の個数: 24

約数和(自身を含む): 66706416

約数和(自身を除く): 26466898

約数列:

[1, 2, 11, 22, 121, 242, 257, 514, 647, 1294, 2827, 5654, 7117, 14234, 31097, 62194, 78287, 156574, 166279, 332558, 1829069, 3658138, 20119759, 40239518]

約数ペア:

[(1, 40239518), (2, 20119759), (11, 3658138), (22, 1829069), (121, 332558), (242, 166279), (257, 156574), (514, 78287), (647, 62194), (1294, 31097), (2827, 14234), (5654, 7117)]