20898240

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1979}}^1$

素因数の和:2010

約数の個数: 112

約数和(自身を含む): 72420480

約数和(自身を除く): 51522240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 64, 66, 80, 88, 96, 110, 120, 132, 160, 165, 176, 192, 220, 240, 264, 320, 330, 352, 440, 480, 528, 660, 704, 880, 960, 1056, 1320, 1760, 1979, 2112, 2640, 3520, 3958, 5280, 5937, 7916, 9895, 10560, 11874, 15832, 19790, 21769, 23748, 29685, 31664, 39580, 43538, 47496, 59370, 63328, 65307, 79160, 87076, 94992, 108845, 118740, 126656, 130614, 158320, 174152, 189984, 217690, 237480, 261228, 316640, 326535, 348304, 379968, 435380, 474960, 522456, 633280, 653070, 696608, 870760, 949920, 1044912, 1306140, 1393216, 1741520, 1899840, 2089824, 2612280, 3483040, 4179648, 5224560, 6966080, 10449120, 20898240]

約数ペア:

[(1, 20898240), (2, 10449120), (3, 6966080), (4, 5224560), (5, 4179648), (6, 3483040), (8, 2612280), (10, 2089824), (11, 1899840), (12, 1741520), (15, 1393216), (16, 1306140), (20, 1044912), (22, 949920), (24, 870760), (30, 696608), (32, 653070), (33, 633280), (40, 522456), (44, 474960), (48, 435380), (55, 379968), (60, 348304), (64, 326535), (66, 316640), (80, 261228), (88, 237480), (96, 217690), (110, 189984), (120, 174152), (132, 158320), (160, 130614), (165, 126656), (176, 118740), (192, 108845), (220, 94992), (240, 87076), (264, 79160), (320, 65307), (330, 63328), (352, 59370), (440, 47496), (480, 43538), (528, 39580), (660, 31664), (704, 29685), (880, 23748), (960, 21769), (1056, 19790), (1320, 15832), (1760, 11874), (1979, 10560), (2112, 9895), (2640, 7916), (3520, 5937), (3958, 5280)]