21280510080

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{1231511}}^1$

素因数の和:1231539

約数の個数: 128

約数和(自身を含む): 75368534400

約数和(自身を除く): 54088024320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 864, 960, 1080, 1152, 1440, 1728, 1920, 2160, 2880, 3456, 4320, 5760, 8640, 17280, 1231511, 2463022, 3694533, 4926044, 6157555, 7389066, 9852088, 11083599, 12315110, 14778132, 18472665, 19704176, 22167198, 24630220, 29556264, 33250797, 36945330, 39408352, 44334396, 49260440, 55417995, 59112528, 66501594, 73890660, 78816704, 88668792, 98520880, 110835990, 118225056, 133003188, 147781320, 157633408, 166253985, 177337584, 197041760, 221671980, 236450112, 266006376, 295562640, 332507970, 354675168, 394083520, 443343960, 472900224, 532012752, 591125280, 665015940, 709350336, 788167040, 886687920, 1064025504, 1182250560, 1330031880, 1418700672, 1773375840, 2128051008, 2364501120, 2660063760, 3546751680, 4256102016, 5320127520, 7093503360, 10640255040, 21280510080]

約数ペア:

[(1, 21280510080), (2, 10640255040), (3, 7093503360), (4, 5320127520), (5, 4256102016), (6, 3546751680), (8, 2660063760), (9, 2364501120), (10, 2128051008), (12, 1773375840), (15, 1418700672), (16, 1330031880), (18, 1182250560), (20, 1064025504), (24, 886687920), (27, 788167040), (30, 709350336), (32, 665015940), (36, 591125280), (40, 532012752), (45, 472900224), (48, 443343960), (54, 394083520), (60, 354675168), (64, 332507970), (72, 295562640), (80, 266006376), (90, 236450112), (96, 221671980), (108, 197041760), (120, 177337584), (128, 166253985), (135, 157633408), (144, 147781320), (160, 133003188), (180, 118225056), (192, 110835990), (216, 98520880), (240, 88668792), (270, 78816704), (288, 73890660), (320, 66501594), (360, 59112528), (384, 55417995), (432, 49260440), (480, 44334396), (540, 39408352), (576, 36945330), (640, 33250797), (720, 29556264), (864, 24630220), (960, 22167198), (1080, 19704176), (1152, 18472665), (1440, 14778132), (1728, 12315110), (1920, 11083599), (2160, 9852088), (2880, 7389066), (3456, 6157555), (4320, 4926044), (5760, 3694533), (8640, 2463022), (17280, 1231511)]