28793520

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:252

約数の個数: 240

約数和(自身を含む): 114903360

約数和(自身を除く): 86109840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 29, 30, 35, 36, 40, 42, 45, 48, 56, 58, 60, 63, 70, 72, 80, 84, 87, 90, 105, 112, 116, 120, 126, 140, 144, 145, 168, 174, 180, 197, 203, 210, 232, 240, 252, 261, 280, 290, 315, 336, 348, 360, 394, 406, 420, 435, 464, 504, 522, 560, 580, 591, 609, 630, 696, 720, 788, 812, 840, 870, 985, 1008, 1015, 1044, 1160, 1182, 1218, 1260, 1305, 1379, 1392, 1576, 1624, 1680, 1740, 1773, 1827, 1970, 2030, 2088, 2320, 2364, 2436, 2520, 2610, 2758, 2955, 3045, 3152, 3248, 3480, 3546, 3654, 3940, 4060, 4137, 4176, 4728, 4872, 5040, 5220, 5516, 5713, 5910, 6090, 6895, 6960, 7092, 7308, 7880, 8120, 8274, 8865, 9135, 9456, 9744, 10440, 11032, 11426, 11820, 12180, 12411, 13790, 14184, 14616, 15760, 16240, 16548, 17139, 17730, 18270, 20685, 20880, 22064, 22852, 23640, 24360, 24822, 27580, 28368, 28565, 29232, 33096, 34278, 35460, 36540, 39991, 41370, 45704, 47280, 48720, 49644, 51417, 55160, 57130, 62055, 66192, 68556, 70920, 73080, 79982, 82740, 85695, 91408, 99288, 102834, 110320, 114260, 119973, 124110, 137112, 141840, 146160, 159964, 165480, 171390, 198576, 199955, 205668, 228520, 239946, 248220, 257085, 274224, 319928, 330960, 342780, 359919, 399910, 411336, 457040, 479892, 496440, 514170, 599865, 639856, 685560, 719838, 799820, 822672, 959784, 992880, 1028340, 1199730, 1371120, 1439676, 1599640, 1799595, 1919568, 2056680, 2399460, 2879352, 3199280, 3599190, 4113360, 4798920, 5758704, 7198380, 9597840, 14396760, 28793520]

約数ペア:

[(1, 28793520), (2, 14396760), (3, 9597840), (4, 7198380), (5, 5758704), (6, 4798920), (7, 4113360), (8, 3599190), (9, 3199280), (10, 2879352), (12, 2399460), (14, 2056680), (15, 1919568), (16, 1799595), (18, 1599640), (20, 1439676), (21, 1371120), (24, 1199730), (28, 1028340), (29, 992880), (30, 959784), (35, 822672), (36, 799820), (40, 719838), (42, 685560), (45, 639856), (48, 599865), (56, 514170), (58, 496440), (60, 479892), (63, 457040), (70, 411336), (72, 399910), (80, 359919), (84, 342780), (87, 330960), (90, 319928), (105, 274224), (112, 257085), (116, 248220), (120, 239946), (126, 228520), (140, 205668), (144, 199955), (145, 198576), (168, 171390), (174, 165480), (180, 159964), (197, 146160), (203, 141840), (210, 137112), (232, 124110), (240, 119973), (252, 114260), (261, 110320), (280, 102834), (290, 99288), (315, 91408), (336, 85695), (348, 82740), (360, 79982), (394, 73080), (406, 70920), (420, 68556), (435, 66192), (464, 62055), (504, 57130), (522, 55160), (560, 51417), (580, 49644), (591, 48720), (609, 47280), (630, 45704), (696, 41370), (720, 39991), (788, 36540), (812, 35460), (840, 34278), (870, 33096), (985, 29232), (1008, 28565), (1015, 28368), (1044, 27580), (1160, 24822), (1182, 24360), (1218, 23640), (1260, 22852), (1305, 22064), (1379, 20880), (1392, 20685), (1576, 18270), (1624, 17730), (1680, 17139), (1740, 16548), (1773, 16240), (1827, 15760), (1970, 14616), (2030, 14184), (2088, 13790), (2320, 12411), (2364, 12180), (2436, 11820), (2520, 11426), (2610, 11032), (2758, 10440), (2955, 9744), (3045, 9456), (3152, 9135), (3248, 8865), (3480, 8274), (3546, 8120), (3654, 7880), (3940, 7308), (4060, 7092), (4137, 6960), (4176, 6895), (4728, 6090), (4872, 5910), (5040, 5713), (5220, 5516)]