20718035

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{379}}^1$

素因数の和:455

約数の個数: 24

約数和(自身を含む): 27802320

約数和(自身を除く): 7084285

約数列:

[1, 5, 13, 29, 65, 145, 377, 379, 841, 1885, 1895, 4205, 4927, 10933, 10991, 24635, 54665, 54955, 142883, 318739, 714415, 1593695, 4143607, 20718035]

約数ペア:

[(1, 20718035), (5, 4143607), (13, 1593695), (29, 714415), (65, 318739), (145, 142883), (377, 54955), (379, 54665), (841, 24635), (1885, 10991), (1895, 10933), (4205, 4927)]