647588660

素因数分解:

$2^2\times 5^1\times {\mathrm{2741}}^1\times {\mathrm{11813}}^1$

素因数の和:14563

約数の個数: 24

約数和(自身を含む): 1360547496

約数和(自身を除く): 712958836

約数列:

[1, 2, 4, 5, 10, 20, 2741, 5482, 10964, 11813, 13705, 23626, 27410, 47252, 54820, 59065, 118130, 236260, 32379433, 64758866, 129517732, 161897165, 323794330, 647588660]

約数ペア:

[(1, 647588660), (2, 323794330), (4, 161897165), (5, 129517732), (10, 64758866), (20, 32379433), (2741, 236260), (5482, 118130), (10964, 59065), (11813, 54820), (13705, 47252), (23626, 27410)]