20488888680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{181}}^1\times {\mathrm{487}}^1$

素因数の和:844

約数の個数: 256

約数和(自身を含む): 67144896000

約数和(自身を除く): 46656007320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 149, 156, 181, 195, 260, 298, 312, 362, 390, 447, 487, 520, 543, 596, 724, 745, 780, 894, 905, 974, 1086, 1192, 1448, 1461, 1490, 1560, 1788, 1810, 1937, 1948, 2172, 2235, 2353, 2435, 2715, 2922, 2980, 3576, 3620, 3874, 3896, 4344, 4470, 4706, 4870, 5430, 5811, 5844, 5960, 6331, 7059, 7240, 7305, 7748, 8940, 9412, 9685, 9740, 10860, 11622, 11688, 11765, 12662, 14118, 14610, 15496, 17880, 18824, 18993, 19370, 19480, 21720, 23244, 23530, 25324, 26969, 28236, 29055, 29220, 31655, 35295, 37986, 38740, 46488, 47060, 50648, 53938, 56472, 58110, 58440, 63310, 70590, 72563, 75972, 77480, 80907, 88147, 94120, 94965, 107876, 116220, 126620, 134845, 141180, 145126, 151944, 161814, 176294, 189930, 215752, 217689, 232440, 253240, 264441, 269690, 282360, 290252, 323628, 350597, 352588, 362815, 379860, 404535, 435378, 440735, 528882, 539380, 580504, 647256, 701194, 705176, 725630, 759720, 809070, 870756, 881470, 943319, 1051791, 1057764, 1078760, 1088445, 1145911, 1322205, 1402388, 1451260, 1618140, 1741512, 1752985, 1762940, 1886638, 2103582, 2115528, 2176890, 2291822, 2644410, 2804776, 2829957, 2902520, 3236280, 3437733, 3505970, 3525880, 3773276, 4207164, 4353780, 4583644, 4716595, 5258955, 5288820, 5659914, 5729555, 6875466, 7011940, 7546552, 8414328, 8707560, 9167288, 9433190, 10517910, 10577640, 11319828, 11459110, 13133903, 13750932, 14023880, 14149785, 17188665, 18866380, 21035820, 22639656, 22918220, 26267806, 27501864, 28299570, 34377330, 37732760, 39401709, 42071640, 45836440, 52535612, 56599140, 65669515, 68754660, 78803418, 105071224, 113198280, 131339030, 137509320, 157606836, 170740739, 197008545, 262678060, 315213672, 341481478, 394017090, 512222217, 525356120, 682962956, 788034180, 853703695, 1024444434, 1365925912, 1576068360, 1707407390, 2048888868, 2561111085, 3414814780, 4097777736, 5122222170, 6829629560, 10244444340, 20488888680]

約数ペア:

[(1, 20488888680), (2, 10244444340), (3, 6829629560), (4, 5122222170), (5, 4097777736), (6, 3414814780), (8, 2561111085), (10, 2048888868), (12, 1707407390), (13, 1576068360), (15, 1365925912), (20, 1024444434), (24, 853703695), (26, 788034180), (30, 682962956), (39, 525356120), (40, 512222217), (52, 394017090), (60, 341481478), (65, 315213672), (78, 262678060), (104, 197008545), (120, 170740739), (130, 157606836), (149, 137509320), (156, 131339030), (181, 113198280), (195, 105071224), (260, 78803418), (298, 68754660), (312, 65669515), (362, 56599140), (390, 52535612), (447, 45836440), (487, 42071640), (520, 39401709), (543, 37732760), (596, 34377330), (724, 28299570), (745, 27501864), (780, 26267806), (894, 22918220), (905, 22639656), (974, 21035820), (1086, 18866380), (1192, 17188665), (1448, 14149785), (1461, 14023880), (1490, 13750932), (1560, 13133903), (1788, 11459110), (1810, 11319828), (1937, 10577640), (1948, 10517910), (2172, 9433190), (2235, 9167288), (2353, 8707560), (2435, 8414328), (2715, 7546552), (2922, 7011940), (2980, 6875466), (3576, 5729555), (3620, 5659914), (3874, 5288820), (3896, 5258955), (4344, 4716595), (4470, 4583644), (4706, 4353780), (4870, 4207164), (5430, 3773276), (5811, 3525880), (5844, 3505970), (5960, 3437733), (6331, 3236280), (7059, 2902520), (7240, 2829957), (7305, 2804776), (7748, 2644410), (8940, 2291822), (9412, 2176890), (9685, 2115528), (9740, 2103582), (10860, 1886638), (11622, 1762940), (11688, 1752985), (11765, 1741512), (12662, 1618140), (14118, 1451260), (14610, 1402388), (15496, 1322205), (17880, 1145911), (18824, 1088445), (18993, 1078760), (19370, 1057764), (19480, 1051791), (21720, 943319), (23244, 881470), (23530, 870756), (25324, 809070), (26969, 759720), (28236, 725630), (29055, 705176), (29220, 701194), (31655, 647256), (35295, 580504), (37986, 539380), (38740, 528882), (46488, 440735), (47060, 435378), (50648, 404535), (53938, 379860), (56472, 362815), (58110, 352588), (58440, 350597), (63310, 323628), (70590, 290252), (72563, 282360), (75972, 269690), (77480, 264441), (80907, 253240), (88147, 232440), (94120, 217689), (94965, 215752), (107876, 189930), (116220, 176294), (126620, 161814), (134845, 151944), (141180, 145126)]