40128129

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{6271}}^1$

素因数の和:6362

約数の個数: 20

約数和(自身を含む): 60712960

約数和(自身を除く): 20584831

約数列:

[1, 3, 9, 27, 79, 81, 237, 711, 2133, 6271, 6399, 18813, 56439, 169317, 495409, 507951, 1486227, 4458681, 13376043, 40128129]

約数ペア:

[(1, 40128129), (3, 13376043), (9, 4458681), (27, 1486227), (79, 507951), (81, 495409), (237, 169317), (711, 56439), (2133, 18813), (6271, 6399)]