13071020

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2543}}^1$

素因数の和:2809

約数の個数: 24

約数和(自身を含む): 27566784

約数和(自身を除く): 14495764

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2543, 2570, 5086, 5140, 10172, 12715, 25430, 50860, 653551, 1307102, 2614204, 3267755, 6535510, 13071020]

約数ペア:

[(1, 13071020), (2, 6535510), (4, 3267755), (5, 2614204), (10, 1307102), (20, 653551), (257, 50860), (514, 25430), (1028, 12715), (1285, 10172), (2543, 5140), (2570, 5086)]