19995348514180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4831}}^1\times {\mathrm{15919103}}^1$

素因数の和:15923956

約数の個数: 48

約数和(自身を含む): 45229612990464

約数和(自身を除く): 25234264476284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 4831, 9662, 19324, 24155, 48310, 62803, 96620, 125606, 251212, 314015, 628030, 1256060, 15919103, 31838206, 63676412, 79595515, 159191030, 206948339, 318382060, 413896678, 827793356, 1034741695, 2069483390, 4138966780, 76905186593, 153810373186, 307620746372, 384525932965, 769051865930, 999767425709, 1538103731860, 1999534851418, 3999069702836, 4998837128545, 9997674257090, 19995348514180]

約数ペア:

[(1, 19995348514180), (2, 9997674257090), (4, 4998837128545), (5, 3999069702836), (10, 1999534851418), (13, 1538103731860), (20, 999767425709), (26, 769051865930), (52, 384525932965), (65, 307620746372), (130, 153810373186), (260, 76905186593), (4831, 4138966780), (9662, 2069483390), (19324, 1034741695), (24155, 827793356), (48310, 413896678), (62803, 318382060), (96620, 206948339), (125606, 159191030), (251212, 79595515), (314015, 63676412), (628030, 31838206), (1256060, 15919103)]