81293435

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{2089}}^1$

素因数の和:2318

約数の個数: 16

約数和(自身を含む): 100420320

約数和(自身を除く): 19126885

約数列:

[1, 5, 43, 181, 215, 905, 2089, 7783, 10445, 38915, 89827, 378109, 449135, 1890545, 16258687, 81293435]

約数ペア:

[(1, 81293435), (5, 16258687), (43, 1890545), (181, 449135), (215, 378109), (905, 89827), (2089, 38915), (7783, 10445)]