20218880000

素因数分解:

$2^{13}\times 5^4\times {\mathrm{11}}^1\times {\mathrm{359}}^1$

素因数の和:416

約数の個数: 280

約数和(自身を含む): 55274931360

約数和(自身を除く): 35056051360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 80, 88, 100, 110, 125, 128, 160, 176, 200, 220, 250, 256, 275, 320, 352, 359, 400, 440, 500, 512, 550, 625, 640, 704, 718, 800, 880, 1000, 1024, 1100, 1250, 1280, 1375, 1408, 1436, 1600, 1760, 1795, 2000, 2048, 2200, 2500, 2560, 2750, 2816, 2872, 3200, 3520, 3590, 3949, 4000, 4096, 4400, 5000, 5120, 5500, 5632, 5744, 6400, 6875, 7040, 7180, 7898, 8000, 8192, 8800, 8975, 10000, 10240, 11000, 11264, 11488, 12800, 13750, 14080, 14360, 15796, 16000, 17600, 17950, 19745, 20000, 20480, 22000, 22528, 22976, 25600, 27500, 28160, 28720, 31592, 32000, 35200, 35900, 39490, 40000, 40960, 44000, 44875, 45056, 45952, 51200, 55000, 56320, 57440, 63184, 64000, 70400, 71800, 78980, 80000, 88000, 89750, 90112, 91904, 98725, 102400, 110000, 112640, 114880, 126368, 128000, 140800, 143600, 157960, 160000, 176000, 179500, 183808, 197450, 204800, 220000, 224375, 225280, 229760, 252736, 256000, 281600, 287200, 315920, 320000, 352000, 359000, 367616, 394900, 440000, 448750, 450560, 459520, 493625, 505472, 512000, 563200, 574400, 631840, 640000, 704000, 718000, 735232, 789800, 880000, 897500, 919040, 987250, 1010944, 1024000, 1126400, 1148800, 1263680, 1280000, 1408000, 1436000, 1470464, 1579600, 1760000, 1795000, 1838080, 1974500, 2021888, 2252800, 2297600, 2468125, 2527360, 2560000, 2816000, 2872000, 2940928, 3159200, 3520000, 3590000, 3676160, 3949000, 4043776, 4595200, 4936250, 5054720, 5120000, 5632000, 5744000, 6318400, 7040000, 7180000, 7352320, 7898000, 8087552, 9190400, 9872500, 10109440, 11264000, 11488000, 12636800, 14080000, 14360000, 14704640, 15796000, 16175104, 18380800, 19745000, 20218880, 22976000, 25273600, 28160000, 28720000, 31592000, 32350208, 36761600, 39490000, 40437760, 45952000, 50547200, 56320000, 57440000, 63184000, 73523200, 78980000, 80875520, 91904000, 101094400, 114880000, 126368000, 157960000, 161751040, 183808000, 202188800, 229760000, 252736000, 315920000, 367616000, 404377600, 459520000, 505472000, 631840000, 808755200, 919040000, 1010944000, 1263680000, 1838080000, 2021888000, 2527360000, 4043776000, 5054720000, 10109440000, 20218880000]

約数ペア:

[(1, 20218880000), (2, 10109440000), (4, 5054720000), (5, 4043776000), (8, 2527360000), (10, 2021888000), (11, 1838080000), (16, 1263680000), (20, 1010944000), (22, 919040000), (25, 808755200), (32, 631840000), (40, 505472000), (44, 459520000), (50, 404377600), (55, 367616000), (64, 315920000), (80, 252736000), (88, 229760000), (100, 202188800), (110, 183808000), (125, 161751040), (128, 157960000), (160, 126368000), (176, 114880000), (200, 101094400), (220, 91904000), (250, 80875520), (256, 78980000), (275, 73523200), (320, 63184000), (352, 57440000), (359, 56320000), (400, 50547200), (440, 45952000), (500, 40437760), (512, 39490000), (550, 36761600), (625, 32350208), (640, 31592000), (704, 28720000), (718, 28160000), (800, 25273600), (880, 22976000), (1000, 20218880), (1024, 19745000), (1100, 18380800), (1250, 16175104), (1280, 15796000), (1375, 14704640), (1408, 14360000), (1436, 14080000), (1600, 12636800), (1760, 11488000), (1795, 11264000), (2000, 10109440), (2048, 9872500), (2200, 9190400), (2500, 8087552), (2560, 7898000), (2750, 7352320), (2816, 7180000), (2872, 7040000), (3200, 6318400), (3520, 5744000), (3590, 5632000), (3949, 5120000), (4000, 5054720), (4096, 4936250), (4400, 4595200), (5000, 4043776), (5120, 3949000), (5500, 3676160), (5632, 3590000), (5744, 3520000), (6400, 3159200), (6875, 2940928), (7040, 2872000), (7180, 2816000), (7898, 2560000), (8000, 2527360), (8192, 2468125), (8800, 2297600), (8975, 2252800), (10000, 2021888), (10240, 1974500), (11000, 1838080), (11264, 1795000), (11488, 1760000), (12800, 1579600), (13750, 1470464), (14080, 1436000), (14360, 1408000), (15796, 1280000), (16000, 1263680), (17600, 1148800), (17950, 1126400), (19745, 1024000), (20000, 1010944), (20480, 987250), (22000, 919040), (22528, 897500), (22976, 880000), (25600, 789800), (27500, 735232), (28160, 718000), (28720, 704000), (31592, 640000), (32000, 631840), (35200, 574400), (35900, 563200), (39490, 512000), (40000, 505472), (40960, 493625), (44000, 459520), (44875, 450560), (45056, 448750), (45952, 440000), (51200, 394900), (55000, 367616), (56320, 359000), (57440, 352000), (63184, 320000), (64000, 315920), (70400, 287200), (71800, 281600), (78980, 256000), (80000, 252736), (88000, 229760), (89750, 225280), (90112, 224375), (91904, 220000), (98725, 204800), (102400, 197450), (110000, 183808), (112640, 179500), (114880, 176000), (126368, 160000), (128000, 157960), (140800, 143600)]