388581020

素因数分解:

$2^2\times 5^1\times {\mathrm{2861}}^1\times {\mathrm{6791}}^1$

素因数の和:9661

約数の個数: 24

約数和(自身を含む): 816425568

約数和(自身を除く): 427844548

約数列:

[1, 2, 4, 5, 10, 20, 2861, 5722, 6791, 11444, 13582, 14305, 27164, 28610, 33955, 57220, 67910, 135820, 19429051, 38858102, 77716204, 97145255, 194290510, 388581020]

約数ペア:

[(1, 388581020), (2, 194290510), (4, 97145255), (5, 77716204), (10, 38858102), (20, 19429051), (2861, 135820), (5722, 67910), (6791, 57220), (11444, 33955), (13582, 28610), (14305, 27164)]