20128772

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{331}}^1\times {\mathrm{661}}^1$

素因数の和:1019

約数の個数: 24

約数和(自身を含む): 36923712

約数和(自身を除く): 16794940

約数列:

[1, 2, 4, 23, 46, 92, 331, 661, 662, 1322, 1324, 2644, 7613, 15203, 15226, 30406, 30452, 60812, 218791, 437582, 875164, 5032193, 10064386, 20128772]

約数ペア:

[(1, 20128772), (2, 10064386), (4, 5032193), (23, 875164), (46, 437582), (92, 218791), (331, 60812), (661, 30452), (662, 30406), (1322, 15226), (1324, 15203), (2644, 7613)]