261127440

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{263}}^1$

素因数の和:486

約数の個数: 240

約数和(自身を含む): 1011149568

約数和(自身を除く): 750022128

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 197, 210, 240, 252, 263, 280, 315, 336, 360, 394, 420, 504, 526, 560, 591, 630, 720, 788, 789, 840, 985, 1008, 1052, 1182, 1260, 1315, 1379, 1576, 1578, 1680, 1773, 1841, 1970, 2104, 2364, 2367, 2520, 2630, 2758, 2955, 3152, 3156, 3546, 3682, 3940, 3945, 4137, 4208, 4728, 4734, 5040, 5260, 5516, 5523, 5910, 6312, 6895, 7092, 7364, 7880, 7890, 8274, 8865, 9205, 9456, 9468, 10520, 11032, 11046, 11820, 11835, 12411, 12624, 13790, 14184, 14728, 15760, 15780, 16548, 16569, 17730, 18410, 18936, 20685, 21040, 22064, 22092, 23640, 23670, 24822, 27580, 27615, 28368, 29456, 31560, 33096, 33138, 35460, 36820, 37872, 41370, 44184, 47280, 47340, 49644, 51811, 55160, 55230, 62055, 63120, 66192, 66276, 70920, 73640, 82740, 82845, 88368, 94680, 99288, 103622, 110320, 110460, 124110, 132552, 141840, 147280, 155433, 165480, 165690, 189360, 198576, 207244, 220920, 248220, 259055, 265104, 310866, 330960, 331380, 362677, 414488, 441840, 466299, 496440, 518110, 621732, 662760, 725354, 777165, 828976, 932598, 992880, 1036220, 1088031, 1243464, 1325520, 1450708, 1554330, 1813385, 1865196, 2072440, 2176062, 2331495, 2486928, 2901416, 3108660, 3264093, 3626770, 3730392, 4144880, 4352124, 4662990, 5440155, 5802832, 6217320, 6528186, 7253540, 7460784, 8704248, 9325980, 10880310, 12434640, 13056372, 14507080, 16320465, 17408496, 18651960, 21760620, 26112744, 29014160, 32640930, 37303920, 43521240, 52225488, 65281860, 87042480, 130563720, 261127440]

約数ペア:

[(1, 261127440), (2, 130563720), (3, 87042480), (4, 65281860), (5, 52225488), (6, 43521240), (7, 37303920), (8, 32640930), (9, 29014160), (10, 26112744), (12, 21760620), (14, 18651960), (15, 17408496), (16, 16320465), (18, 14507080), (20, 13056372), (21, 12434640), (24, 10880310), (28, 9325980), (30, 8704248), (35, 7460784), (36, 7253540), (40, 6528186), (42, 6217320), (45, 5802832), (48, 5440155), (56, 4662990), (60, 4352124), (63, 4144880), (70, 3730392), (72, 3626770), (80, 3264093), (84, 3108660), (90, 2901416), (105, 2486928), (112, 2331495), (120, 2176062), (126, 2072440), (140, 1865196), (144, 1813385), (168, 1554330), (180, 1450708), (197, 1325520), (210, 1243464), (240, 1088031), (252, 1036220), (263, 992880), (280, 932598), (315, 828976), (336, 777165), (360, 725354), (394, 662760), (420, 621732), (504, 518110), (526, 496440), (560, 466299), (591, 441840), (630, 414488), (720, 362677), (788, 331380), (789, 330960), (840, 310866), (985, 265104), (1008, 259055), (1052, 248220), (1182, 220920), (1260, 207244), (1315, 198576), (1379, 189360), (1576, 165690), (1578, 165480), (1680, 155433), (1773, 147280), (1841, 141840), (1970, 132552), (2104, 124110), (2364, 110460), (2367, 110320), (2520, 103622), (2630, 99288), (2758, 94680), (2955, 88368), (3152, 82845), (3156, 82740), (3546, 73640), (3682, 70920), (3940, 66276), (3945, 66192), (4137, 63120), (4208, 62055), (4728, 55230), (4734, 55160), (5040, 51811), (5260, 49644), (5516, 47340), (5523, 47280), (5910, 44184), (6312, 41370), (6895, 37872), (7092, 36820), (7364, 35460), (7880, 33138), (7890, 33096), (8274, 31560), (8865, 29456), (9205, 28368), (9456, 27615), (9468, 27580), (10520, 24822), (11032, 23670), (11046, 23640), (11820, 22092), (11835, 22064), (12411, 21040), (12624, 20685), (13790, 18936), (14184, 18410), (14728, 17730), (15760, 16569), (15780, 16548)]