28490220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{14389}}^1$

素因数の和:14415

約数の個数: 72

約数和(自身を含む): 94283280

約数和(自身を除く): 65793060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 14389, 28778, 43167, 57556, 71945, 86334, 129501, 143890, 158279, 172668, 215835, 259002, 287780, 316558, 431670, 474837, 518004, 633116, 647505, 791395, 863340, 949674, 1295010, 1424511, 1582790, 1899348, 2374185, 2590020, 2849022, 3165580, 4748370, 5698044, 7122555, 9496740, 14245110, 28490220]

約数ペア:

[(1, 28490220), (2, 14245110), (3, 9496740), (4, 7122555), (5, 5698044), (6, 4748370), (9, 3165580), (10, 2849022), (11, 2590020), (12, 2374185), (15, 1899348), (18, 1582790), (20, 1424511), (22, 1295010), (30, 949674), (33, 863340), (36, 791395), (44, 647505), (45, 633116), (55, 518004), (60, 474837), (66, 431670), (90, 316558), (99, 287780), (110, 259002), (132, 215835), (165, 172668), (180, 158279), (198, 143890), (220, 129501), (330, 86334), (396, 71945), (495, 57556), (660, 43167), (990, 28778), (1980, 14389)]