80493020

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{12941}}^1$

素因数の和:13261

約数の個数: 24

約数和(自身を含む): 169591968

約数和(自身を除く): 89098948

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 6220, 12941, 25882, 51764, 64705, 129410, 258820, 4024651, 8049302, 16098604, 20123255, 40246510, 80493020]

約数ペア:

[(1, 80493020), (2, 40246510), (4, 20123255), (5, 16098604), (10, 8049302), (20, 4024651), (311, 258820), (622, 129410), (1244, 64705), (1555, 51764), (3110, 25882), (6220, 12941)]