20508840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5179}}^1$

素因数の和:5207

約数の個数: 96

約数和(自身を含む): 72727200

約数和(自身を除く): 52218360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 5179, 10358, 15537, 20716, 25895, 31074, 41432, 46611, 51790, 56969, 62148, 77685, 93222, 103580, 113938, 124296, 155370, 170907, 186444, 207160, 227876, 233055, 284845, 310740, 341814, 372888, 455752, 466110, 512721, 569690, 621480, 683628, 854535, 932220, 1025442, 1139380, 1367256, 1709070, 1864440, 2050884, 2278760, 2563605, 3418140, 4101768, 5127210, 6836280, 10254420, 20508840]

約数ペア:

[(1, 20508840), (2, 10254420), (3, 6836280), (4, 5127210), (5, 4101768), (6, 3418140), (8, 2563605), (9, 2278760), (10, 2050884), (11, 1864440), (12, 1709070), (15, 1367256), (18, 1139380), (20, 1025442), (22, 932220), (24, 854535), (30, 683628), (33, 621480), (36, 569690), (40, 512721), (44, 466110), (45, 455752), (55, 372888), (60, 341814), (66, 310740), (72, 284845), (88, 233055), (90, 227876), (99, 207160), (110, 186444), (120, 170907), (132, 155370), (165, 124296), (180, 113938), (198, 103580), (220, 93222), (264, 77685), (330, 62148), (360, 56969), (396, 51790), (440, 46611), (495, 41432), (660, 31074), (792, 25895), (990, 20716), (1320, 15537), (1980, 10358), (3960, 5179)]