20991648960

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47639}}^1$

素因数の和:47685

約数の個数: 280

約数和(自身を含む): 79065059040

約数和(自身を除く): 58073410080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 32, 34, 36, 40, 45, 48, 51, 54, 60, 64, 68, 72, 80, 81, 85, 90, 96, 102, 108, 120, 135, 136, 144, 153, 160, 162, 170, 180, 192, 204, 216, 240, 255, 270, 272, 288, 306, 320, 324, 340, 360, 405, 408, 432, 459, 480, 510, 540, 544, 576, 612, 648, 680, 720, 765, 810, 816, 864, 918, 960, 1020, 1080, 1088, 1224, 1296, 1360, 1377, 1440, 1530, 1620, 1632, 1728, 1836, 2040, 2160, 2295, 2448, 2592, 2720, 2754, 2880, 3060, 3240, 3264, 3672, 4080, 4320, 4590, 4896, 5184, 5440, 5508, 6120, 6480, 6885, 7344, 8160, 8640, 9180, 9792, 11016, 12240, 12960, 13770, 14688, 16320, 18360, 22032, 24480, 25920, 27540, 29376, 36720, 44064, 47639, 48960, 55080, 73440, 88128, 95278, 110160, 142917, 146880, 190556, 220320, 238195, 285834, 381112, 428751, 440640, 476390, 571668, 714585, 762224, 809863, 857502, 952780, 1143336, 1286253, 1429170, 1524448, 1619726, 1715004, 1905560, 2143755, 2286672, 2429589, 2572506, 2858340, 3048896, 3239452, 3430008, 3811120, 3858759, 4049315, 4287510, 4573344, 4859178, 5145012, 5716680, 6431265, 6478904, 6860016, 7288767, 7622240, 7717518, 8098630, 8575020, 9146688, 9718356, 10290024, 11433360, 12147945, 12862530, 12957808, 13720032, 14577534, 15244480, 15435036, 16197260, 17150040, 19293795, 19436712, 20580048, 21866301, 22866720, 24295890, 25725060, 25915616, 27440064, 29155068, 30870072, 32394520, 34300080, 36443835, 38587590, 38873424, 41160096, 43732602, 45733440, 48591780, 51450120, 51831232, 58310136, 61740144, 64789040, 65598903, 68600160, 72887670, 77175180, 77746848, 82320192, 87465204, 97183560, 102900240, 109331505, 116620272, 123480288, 129578080, 131197806, 137200320, 145775340, 154350360, 155493696, 174930408, 194367120, 205800480, 218663010, 233240544, 246960576, 259156160, 262395612, 291550680, 308700720, 327994515, 349860816, 388734240, 411600960, 437326020, 466481088, 524791224, 583101360, 617401440, 655989030, 699721632, 777468480, 874652040, 1049582448, 1166202720, 1234802880, 1311978060, 1399443264, 1749304080, 2099164896, 2332405440, 2623956120, 3498608160, 4198329792, 5247912240, 6997216320, 10495824480, 20991648960]

約数ペア:

[(1, 20991648960), (2, 10495824480), (3, 6997216320), (4, 5247912240), (5, 4198329792), (6, 3498608160), (8, 2623956120), (9, 2332405440), (10, 2099164896), (12, 1749304080), (15, 1399443264), (16, 1311978060), (17, 1234802880), (18, 1166202720), (20, 1049582448), (24, 874652040), (27, 777468480), (30, 699721632), (32, 655989030), (34, 617401440), (36, 583101360), (40, 524791224), (45, 466481088), (48, 437326020), (51, 411600960), (54, 388734240), (60, 349860816), (64, 327994515), (68, 308700720), (72, 291550680), (80, 262395612), (81, 259156160), (85, 246960576), (90, 233240544), (96, 218663010), (102, 205800480), (108, 194367120), (120, 174930408), (135, 155493696), (136, 154350360), (144, 145775340), (153, 137200320), (160, 131197806), (162, 129578080), (170, 123480288), (180, 116620272), (192, 109331505), (204, 102900240), (216, 97183560), (240, 87465204), (255, 82320192), (270, 77746848), (272, 77175180), (288, 72887670), (306, 68600160), (320, 65598903), (324, 64789040), (340, 61740144), (360, 58310136), (405, 51831232), (408, 51450120), (432, 48591780), (459, 45733440), (480, 43732602), (510, 41160096), (540, 38873424), (544, 38587590), (576, 36443835), (612, 34300080), (648, 32394520), (680, 30870072), (720, 29155068), (765, 27440064), (810, 25915616), (816, 25725060), (864, 24295890), (918, 22866720), (960, 21866301), (1020, 20580048), (1080, 19436712), (1088, 19293795), (1224, 17150040), (1296, 16197260), (1360, 15435036), (1377, 15244480), (1440, 14577534), (1530, 13720032), (1620, 12957808), (1632, 12862530), (1728, 12147945), (1836, 11433360), (2040, 10290024), (2160, 9718356), (2295, 9146688), (2448, 8575020), (2592, 8098630), (2720, 7717518), (2754, 7622240), (2880, 7288767), (3060, 6860016), (3240, 6478904), (3264, 6431265), (3672, 5716680), (4080, 5145012), (4320, 4859178), (4590, 4573344), (4896, 4287510), (5184, 4049315), (5440, 3858759), (5508, 3811120), (6120, 3430008), (6480, 3239452), (6885, 3048896), (7344, 2858340), (8160, 2572506), (8640, 2429589), (9180, 2286672), (9792, 2143755), (11016, 1905560), (12240, 1715004), (12960, 1619726), (13770, 1524448), (14688, 1429170), (16320, 1286253), (18360, 1143336), (22032, 952780), (24480, 857502), (25920, 809863), (27540, 762224), (29376, 714585), (36720, 571668), (44064, 476390), (47639, 440640), (48960, 428751), (55080, 381112), (73440, 285834), (88128, 238195), (95278, 220320), (110160, 190556), (142917, 146880)]