20161299905

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1\times {\mathrm{443}}^1\times {\mathrm{653}}^1$

素因数の和:1417

約数の個数: 32

約数和(自身を含む): 24837601536

約数和(自身を除く): 4676301631

約数列:

[1, 5, 53, 263, 265, 443, 653, 1315, 2215, 3265, 13939, 23479, 34609, 69695, 116509, 117395, 171739, 173045, 289279, 582545, 858695, 1446395, 6174977, 9102167, 15331787, 30874885, 45510835, 76080377, 76658935, 380401885, 4032259981, 20161299905]

約数ペア:

[(1, 20161299905), (5, 4032259981), (53, 380401885), (263, 76658935), (265, 76080377), (443, 45510835), (653, 30874885), (1315, 15331787), (2215, 9102167), (3265, 6174977), (13939, 1446395), (23479, 858695), (34609, 582545), (69695, 289279), (116509, 173045), (117395, 171739)]