257883416

素因数分解:

$2^3\times 7^1\times {\mathrm{4605061}}^1$

素因数の和:4605074

約数の個数: 16

約数和(自身を含む): 552607440

約数和(自身を除く): 294724024

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 4605061, 9210122, 18420244, 32235427, 36840488, 64470854, 128941708, 257883416]

約数ペア:

[(1, 257883416), (2, 128941708), (4, 64470854), (7, 36840488), (8, 32235427), (14, 18420244), (28, 9210122), (56, 4605061)]