20745612720

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{242129}}^1$

素因数の和:242172

約数の個数: 240

約数和(自身を含む): 84307728960

約数和(自身を除く): 63562116240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 20, 21, 24, 28, 30, 34, 35, 36, 40, 42, 45, 48, 51, 56, 60, 63, 68, 70, 72, 80, 84, 85, 90, 102, 105, 112, 119, 120, 126, 136, 140, 144, 153, 168, 170, 180, 204, 210, 238, 240, 252, 255, 272, 280, 306, 315, 336, 340, 357, 360, 408, 420, 476, 504, 510, 560, 595, 612, 630, 680, 714, 720, 765, 816, 840, 952, 1008, 1020, 1071, 1190, 1224, 1260, 1360, 1428, 1530, 1680, 1785, 1904, 2040, 2142, 2380, 2448, 2520, 2856, 3060, 3570, 4080, 4284, 4760, 5040, 5355, 5712, 6120, 7140, 8568, 9520, 10710, 12240, 14280, 17136, 21420, 28560, 42840, 85680, 242129, 484258, 726387, 968516, 1210645, 1452774, 1694903, 1937032, 2179161, 2421290, 2905548, 3389806, 3631935, 3874064, 4116193, 4358322, 4842580, 5084709, 5811096, 6779612, 7263870, 8232386, 8474515, 8716644, 9685160, 10169418, 10895805, 11622192, 12348579, 13559224, 14527740, 15254127, 16464772, 16949030, 17433288, 19370320, 20338836, 20580965, 21791610, 24697158, 25423545, 27118448, 28813351, 29055480, 30508254, 32929544, 33898060, 34866576, 37045737, 40677672, 41161930, 43583220, 49394316, 50847090, 57626702, 58110960, 61016508, 61742895, 65859088, 67796120, 74091474, 76270635, 81355344, 82323860, 86440053, 87166440, 98788632, 101694180, 115253404, 122033016, 123485790, 135592240, 144066755, 148182948, 152541270, 164647720, 172880106, 174332880, 185228685, 197577264, 203388360, 230506808, 244066032, 246971580, 259320159, 288133510, 296365896, 305082540, 329295440, 345760212, 370457370, 406776720, 432200265, 461013616, 493943160, 518640318, 576267020, 592731792, 610165080, 691520424, 740914740, 864400530, 987886320, 1037280636, 1152534040, 1220330160, 1296600795, 1383040848, 1481829480, 1728801060, 2074561272, 2305068080, 2593201590, 2963658960, 3457602120, 4149122544, 5186403180, 6915204240, 10372806360, 20745612720]

約数ペア:

[(1, 20745612720), (2, 10372806360), (3, 6915204240), (4, 5186403180), (5, 4149122544), (6, 3457602120), (7, 2963658960), (8, 2593201590), (9, 2305068080), (10, 2074561272), (12, 1728801060), (14, 1481829480), (15, 1383040848), (16, 1296600795), (17, 1220330160), (18, 1152534040), (20, 1037280636), (21, 987886320), (24, 864400530), (28, 740914740), (30, 691520424), (34, 610165080), (35, 592731792), (36, 576267020), (40, 518640318), (42, 493943160), (45, 461013616), (48, 432200265), (51, 406776720), (56, 370457370), (60, 345760212), (63, 329295440), (68, 305082540), (70, 296365896), (72, 288133510), (80, 259320159), (84, 246971580), (85, 244066032), (90, 230506808), (102, 203388360), (105, 197577264), (112, 185228685), (119, 174332880), (120, 172880106), (126, 164647720), (136, 152541270), (140, 148182948), (144, 144066755), (153, 135592240), (168, 123485790), (170, 122033016), (180, 115253404), (204, 101694180), (210, 98788632), (238, 87166440), (240, 86440053), (252, 82323860), (255, 81355344), (272, 76270635), (280, 74091474), (306, 67796120), (315, 65859088), (336, 61742895), (340, 61016508), (357, 58110960), (360, 57626702), (408, 50847090), (420, 49394316), (476, 43583220), (504, 41161930), (510, 40677672), (560, 37045737), (595, 34866576), (612, 33898060), (630, 32929544), (680, 30508254), (714, 29055480), (720, 28813351), (765, 27118448), (816, 25423545), (840, 24697158), (952, 21791610), (1008, 20580965), (1020, 20338836), (1071, 19370320), (1190, 17433288), (1224, 16949030), (1260, 16464772), (1360, 15254127), (1428, 14527740), (1530, 13559224), (1680, 12348579), (1785, 11622192), (1904, 10895805), (2040, 10169418), (2142, 9685160), (2380, 8716644), (2448, 8474515), (2520, 8232386), (2856, 7263870), (3060, 6779612), (3570, 5811096), (4080, 5084709), (4284, 4842580), (4760, 4358322), (5040, 4116193), (5355, 3874064), (5712, 3631935), (6120, 3389806), (7140, 2905548), (8568, 2421290), (9520, 2179161), (10710, 1937032), (12240, 1694903), (14280, 1452774), (17136, 1210645), (21420, 968516), (28560, 726387), (42840, 484258), (85680, 242129)]