20778858720

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{69709}}^1$

素因数の和:69759

約数の個数: 240

約数和(自身を含む): 76521503520

約数和(自身を除く): 55742644800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 27, 30, 32, 36, 40, 45, 46, 48, 54, 60, 69, 72, 80, 81, 90, 92, 96, 108, 115, 120, 135, 138, 144, 160, 162, 180, 184, 207, 216, 230, 240, 270, 276, 288, 324, 345, 360, 368, 405, 414, 432, 460, 480, 540, 552, 621, 648, 690, 720, 736, 810, 828, 864, 920, 1035, 1080, 1104, 1242, 1296, 1380, 1440, 1620, 1656, 1840, 1863, 2070, 2160, 2208, 2484, 2592, 2760, 3105, 3240, 3312, 3680, 3726, 4140, 4320, 4968, 5520, 6210, 6480, 6624, 7452, 8280, 9315, 9936, 11040, 12420, 12960, 14904, 16560, 18630, 19872, 24840, 29808, 33120, 37260, 49680, 59616, 69709, 74520, 99360, 139418, 149040, 209127, 278836, 298080, 348545, 418254, 557672, 627381, 697090, 836508, 1045635, 1115344, 1254762, 1394180, 1603307, 1673016, 1882143, 2091270, 2230688, 2509524, 2788360, 3136905, 3206614, 3346032, 3764286, 4182540, 4809921, 5019048, 5576720, 5646429, 6273810, 6413228, 6692064, 7528572, 8016535, 8365080, 9410715, 9619842, 10038096, 11153440, 11292858, 12547620, 12826456, 14429763, 15057144, 16033070, 16730160, 18821430, 19239684, 20076192, 22585716, 24049605, 25095240, 25652912, 28232145, 28859526, 30114288, 32066140, 33460320, 37642860, 38479368, 43289289, 45171432, 48099210, 50190480, 51305824, 56464290, 57719052, 60228576, 64132280, 72148815, 75285720, 76958736, 86578578, 90342864, 96198420, 100380960, 112928580, 115438104, 128264560, 129867867, 144297630, 150571440, 153917472, 173157156, 180685728, 192396840, 216446445, 225857160, 230876208, 256529120, 259735734, 288595260, 301142880, 346314312, 384793680, 432892890, 451714320, 461752416, 519471468, 577190520, 649339335, 692628624, 769587360, 865785780, 903428640, 1038942936, 1154381040, 1298678670, 1385257248, 1731571560, 2077885872, 2308762080, 2597357340, 3463143120, 4155771744, 5194714680, 6926286240, 10389429360, 20778858720]

約数ペア:

[(1, 20778858720), (2, 10389429360), (3, 6926286240), (4, 5194714680), (5, 4155771744), (6, 3463143120), (8, 2597357340), (9, 2308762080), (10, 2077885872), (12, 1731571560), (15, 1385257248), (16, 1298678670), (18, 1154381040), (20, 1038942936), (23, 903428640), (24, 865785780), (27, 769587360), (30, 692628624), (32, 649339335), (36, 577190520), (40, 519471468), (45, 461752416), (46, 451714320), (48, 432892890), (54, 384793680), (60, 346314312), (69, 301142880), (72, 288595260), (80, 259735734), (81, 256529120), (90, 230876208), (92, 225857160), (96, 216446445), (108, 192396840), (115, 180685728), (120, 173157156), (135, 153917472), (138, 150571440), (144, 144297630), (160, 129867867), (162, 128264560), (180, 115438104), (184, 112928580), (207, 100380960), (216, 96198420), (230, 90342864), (240, 86578578), (270, 76958736), (276, 75285720), (288, 72148815), (324, 64132280), (345, 60228576), (360, 57719052), (368, 56464290), (405, 51305824), (414, 50190480), (432, 48099210), (460, 45171432), (480, 43289289), (540, 38479368), (552, 37642860), (621, 33460320), (648, 32066140), (690, 30114288), (720, 28859526), (736, 28232145), (810, 25652912), (828, 25095240), (864, 24049605), (920, 22585716), (1035, 20076192), (1080, 19239684), (1104, 18821430), (1242, 16730160), (1296, 16033070), (1380, 15057144), (1440, 14429763), (1620, 12826456), (1656, 12547620), (1840, 11292858), (1863, 11153440), (2070, 10038096), (2160, 9619842), (2208, 9410715), (2484, 8365080), (2592, 8016535), (2760, 7528572), (3105, 6692064), (3240, 6413228), (3312, 6273810), (3680, 5646429), (3726, 5576720), (4140, 5019048), (4320, 4809921), (4968, 4182540), (5520, 3764286), (6210, 3346032), (6480, 3206614), (6624, 3136905), (7452, 2788360), (8280, 2509524), (9315, 2230688), (9936, 2091270), (11040, 1882143), (12420, 1673016), (12960, 1603307), (14904, 1394180), (16560, 1254762), (18630, 1115344), (19872, 1045635), (24840, 836508), (29808, 697090), (33120, 627381), (37260, 557672), (49680, 418254), (59616, 348545), (69709, 298080), (74520, 278836), (99360, 209127), (139418, 149040)]