20199897990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{740737}}^1$

素因数の和:740854

約数の個数: 64

約数和(自身を含む): 54399798720

約数和(自身を除く): 34199900730

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 101, 135, 202, 270, 303, 505, 606, 909, 1010, 1515, 1818, 2727, 3030, 4545, 5454, 9090, 13635, 27270, 740737, 1481474, 2222211, 3703685, 4444422, 6666633, 7407370, 11111055, 13333266, 19999899, 22222110, 33333165, 39999798, 66666330, 74814437, 99999495, 149628874, 199998990, 224443311, 374072185, 448886622, 673329933, 748144370, 1122216555, 1346659866, 2019989799, 2244433110, 3366649665, 4039979598, 6733299330, 10099948995, 20199897990]

約数ペア:

[(1, 20199897990), (2, 10099948995), (3, 6733299330), (5, 4039979598), (6, 3366649665), (9, 2244433110), (10, 2019989799), (15, 1346659866), (18, 1122216555), (27, 748144370), (30, 673329933), (45, 448886622), (54, 374072185), (90, 224443311), (101, 199998990), (135, 149628874), (202, 99999495), (270, 74814437), (303, 66666330), (505, 39999798), (606, 33333165), (909, 22222110), (1010, 19999899), (1515, 13333266), (1818, 11111055), (2727, 7407370), (3030, 6666633), (4545, 4444422), (5454, 3703685), (9090, 2222211), (13635, 1481474), (27270, 740737)]