20728085280

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{56597}}^1$

素因数の和:56731

約数の個数: 192

約数和(自身を含む): 75307034880

約数和(自身を除く): 54578949600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 109, 112, 120, 140, 160, 168, 210, 218, 224, 240, 280, 327, 336, 420, 436, 480, 545, 560, 654, 672, 763, 840, 872, 1090, 1120, 1308, 1526, 1635, 1680, 1744, 2180, 2289, 2616, 3052, 3270, 3360, 3488, 3815, 4360, 4578, 5232, 6104, 6540, 7630, 8720, 9156, 10464, 11445, 12208, 13080, 15260, 17440, 18312, 22890, 24416, 26160, 30520, 36624, 45780, 52320, 56597, 61040, 73248, 91560, 113194, 122080, 169791, 183120, 226388, 282985, 339582, 366240, 396179, 452776, 565970, 679164, 792358, 848955, 905552, 1131940, 1188537, 1358328, 1584716, 1697910, 1811104, 1980895, 2263880, 2377074, 2716656, 3169432, 3395820, 3961790, 4527760, 4754148, 5433312, 5942685, 6169073, 6338864, 6791640, 7923580, 9055520, 9508296, 11885370, 12338146, 12677728, 13583280, 15847160, 18507219, 19016592, 23770740, 24676292, 27166560, 30845365, 31694320, 37014438, 38033184, 43183511, 47541480, 49352584, 61690730, 63388640, 74028876, 86367022, 92536095, 95082960, 98705168, 123381460, 129550533, 148057752, 172734044, 185072190, 190165920, 197410336, 215917555, 246762920, 259101066, 296115504, 345468088, 370144380, 431835110, 493525840, 518202132, 592231008, 647752665, 690936176, 740288760, 863670220, 987051680, 1036404264, 1295505330, 1381872352, 1480577520, 1727340440, 2072808528, 2591010660, 2961155040, 3454680880, 4145617056, 5182021320, 6909361760, 10364042640, 20728085280]

約数ペア:

[(1, 20728085280), (2, 10364042640), (3, 6909361760), (4, 5182021320), (5, 4145617056), (6, 3454680880), (7, 2961155040), (8, 2591010660), (10, 2072808528), (12, 1727340440), (14, 1480577520), (15, 1381872352), (16, 1295505330), (20, 1036404264), (21, 987051680), (24, 863670220), (28, 740288760), (30, 690936176), (32, 647752665), (35, 592231008), (40, 518202132), (42, 493525840), (48, 431835110), (56, 370144380), (60, 345468088), (70, 296115504), (80, 259101066), (84, 246762920), (96, 215917555), (105, 197410336), (109, 190165920), (112, 185072190), (120, 172734044), (140, 148057752), (160, 129550533), (168, 123381460), (210, 98705168), (218, 95082960), (224, 92536095), (240, 86367022), (280, 74028876), (327, 63388640), (336, 61690730), (420, 49352584), (436, 47541480), (480, 43183511), (545, 38033184), (560, 37014438), (654, 31694320), (672, 30845365), (763, 27166560), (840, 24676292), (872, 23770740), (1090, 19016592), (1120, 18507219), (1308, 15847160), (1526, 13583280), (1635, 12677728), (1680, 12338146), (1744, 11885370), (2180, 9508296), (2289, 9055520), (2616, 7923580), (3052, 6791640), (3270, 6338864), (3360, 6169073), (3488, 5942685), (3815, 5433312), (4360, 4754148), (4578, 4527760), (5232, 3961790), (6104, 3395820), (6540, 3169432), (7630, 2716656), (8720, 2377074), (9156, 2263880), (10464, 1980895), (11445, 1811104), (12208, 1697910), (13080, 1584716), (15260, 1358328), (17440, 1188537), (18312, 1131940), (22890, 905552), (24416, 848955), (26160, 792358), (30520, 679164), (36624, 565970), (45780, 452776), (52320, 396179), (56597, 366240), (61040, 339582), (73248, 282985), (91560, 226388), (113194, 183120), (122080, 169791)]