81057806

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1\times {\mathrm{2531}}^1$

素因数の和:2839

約数の個数: 16

約数和(自身を含む): 123966720

約数和(自身を除く): 42908914

約数列:

[1, 2, 67, 134, 239, 478, 2531, 5062, 16013, 32026, 169577, 339154, 604909, 1209818, 40528903, 81057806]

約数ペア:

[(1, 81057806), (2, 40528903), (67, 1209818), (134, 604909), (239, 339154), (478, 169577), (2531, 32026), (5062, 16013)]