81466660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{367}}^1\times {\mathrm{1009}}^1$

素因数の和:1396

約数の個数: 48

約数和(自身を含む): 187326720

約数和(自身を除く): 105860060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 367, 734, 1009, 1468, 1835, 2018, 3670, 4036, 4037, 5045, 7340, 8074, 10090, 11099, 16148, 20180, 20185, 22198, 40370, 44396, 55495, 80740, 110990, 221980, 370303, 740606, 1481212, 1851515, 3703030, 4073333, 7406060, 8146666, 16293332, 20366665, 40733330, 81466660]

約数ペア:

[(1, 81466660), (2, 40733330), (4, 20366665), (5, 16293332), (10, 8146666), (11, 7406060), (20, 4073333), (22, 3703030), (44, 1851515), (55, 1481212), (110, 740606), (220, 370303), (367, 221980), (734, 110990), (1009, 80740), (1468, 55495), (1835, 44396), (2018, 40370), (3670, 22198), (4036, 20185), (4037, 20180), (5045, 16148), (7340, 11099), (8074, 10090)]