12756965

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:549

約数の個数: 24

約数和(自身を含む): 17146368

約数和(自身を除く): 4389403

約数列:

[1, 5, 13, 31, 65, 155, 169, 403, 487, 845, 2015, 2435, 5239, 6331, 15097, 26195, 31655, 75485, 82303, 196261, 411515, 981305, 2551393, 12756965]

約数ペア:

[(1, 12756965), (5, 2551393), (13, 981305), (31, 411515), (65, 196261), (155, 82303), (169, 75485), (403, 31655), (487, 26195), (845, 15097), (2015, 6331), (2435, 5239)]