1290257905

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{1531}}^1\times {\mathrm{4111}}^1$

素因数の和:5688

約数の個数: 16

約数和(自身を含む): 1587495168

約数和(自身を除く): 297237263

約数列:

[1, 5, 41, 205, 1531, 4111, 7655, 20555, 62771, 168551, 313855, 842755, 6293941, 31469705, 258051581, 1290257905]

約数ペア:

[(1, 1290257905), (5, 258051581), (41, 31469705), (205, 6293941), (1531, 842755), (4111, 313855), (7655, 168551), (20555, 62771)]