981305

素因数分解:

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

素因数の和:536

約数の個数: 16

約数和(自身を含む): 1311744

約数和(自身を除く): 330439

約数列:

[1, 5, 13, 31, 65, 155, 403, 487, 2015, 2435, 6331, 15097, 31655, 75485, 196261, 981305]

約数ペア:

[(1, 981305), (5, 196261), (13, 75485), (31, 31655), (65, 15097), (155, 6331), (403, 2435), (487, 2015)]