26012020

素因数分解:

$2^2\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1289}}^1$

素因数の和:2307

約数の個数: 24

約数和(自身を含む): 54721800

約数和(自身を除く): 28709780

約数列:

[1, 2, 4, 5, 10, 20, 1009, 1289, 2018, 2578, 4036, 5045, 5156, 6445, 10090, 12890, 20180, 25780, 1300601, 2601202, 5202404, 6503005, 13006010, 26012020]

約数ペア:

[(1, 26012020), (2, 13006010), (4, 6503005), (5, 5202404), (10, 2601202), (20, 1300601), (1009, 25780), (1289, 20180), (2018, 12890), (2578, 10090), (4036, 6445), (5045, 5156)]