638380054

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{50417}}^1$

素因数の和:50919

約数の個数: 16

約数和(自身を含む): 1033367328

約数和(自身を除く): 394987274

約数列:

[1, 2, 13, 26, 487, 974, 6331, 12662, 50417, 100834, 655421, 1310842, 24553079, 49106158, 319190027, 638380054]

約数ペア:

[(1, 638380054), (2, 319190027), (13, 49106158), (26, 24553079), (487, 1310842), (974, 655421), (6331, 100834), (12662, 50417)]