20826960

素因数分解:

$2^4\times 3^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1$

素因数の和:71

約数の個数: 320

約数和(自身を含む): 85708800

約数和(自身を除く): 64881840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 23, 24, 28, 30, 33, 35, 40, 42, 44, 46, 48, 49, 55, 56, 60, 66, 69, 70, 77, 80, 84, 88, 92, 98, 105, 110, 112, 115, 120, 132, 138, 140, 147, 154, 161, 165, 168, 176, 184, 196, 210, 220, 230, 231, 240, 245, 253, 264, 276, 280, 294, 308, 322, 330, 336, 343, 345, 368, 385, 392, 420, 440, 460, 462, 483, 490, 506, 528, 539, 552, 560, 588, 616, 644, 660, 686, 690, 735, 759, 770, 784, 805, 840, 880, 920, 924, 966, 980, 1012, 1029, 1078, 1104, 1127, 1155, 1176, 1232, 1265, 1288, 1320, 1372, 1380, 1470, 1518, 1540, 1610, 1617, 1680, 1715, 1771, 1840, 1848, 1932, 1960, 2024, 2058, 2156, 2254, 2310, 2352, 2415, 2530, 2576, 2640, 2695, 2744, 2760, 2940, 3036, 3080, 3220, 3234, 3381, 3430, 3542, 3696, 3773, 3795, 3864, 3920, 4048, 4116, 4312, 4508, 4620, 4830, 5060, 5145, 5313, 5390, 5488, 5520, 5635, 5880, 6072, 6160, 6440, 6468, 6762, 6860, 7084, 7546, 7590, 7728, 7889, 8085, 8232, 8624, 8855, 9016, 9240, 9660, 10120, 10290, 10626, 10780, 11270, 11319, 11760, 12144, 12397, 12880, 12936, 13524, 13720, 14168, 15092, 15180, 15778, 16170, 16464, 16905, 17710, 18032, 18480, 18865, 19320, 20240, 20580, 21252, 21560, 22540, 22638, 23667, 24794, 25872, 26565, 27048, 27440, 28336, 30184, 30360, 31556, 32340, 33810, 35420, 37191, 37730, 38640, 39445, 41160, 42504, 43120, 45080, 45276, 47334, 49588, 53130, 54096, 56595, 60368, 60720, 61985, 63112, 64680, 67620, 70840, 74382, 75460, 78890, 82320, 85008, 86779, 90160, 90552, 94668, 99176, 106260, 113190, 118335, 123970, 126224, 129360, 135240, 141680, 148764, 150920, 157780, 173558, 181104, 185955, 189336, 198352, 212520, 226380, 236670, 247940, 260337, 270480, 297528, 301840, 315560, 347116, 371910, 378672, 425040, 433895, 452760, 473340, 495880, 520674, 595056, 631120, 694232, 743820, 867790, 905520, 946680, 991760, 1041348, 1301685, 1388464, 1487640, 1735580, 1893360, 2082696, 2603370, 2975280, 3471160, 4165392, 5206740, 6942320, 10413480, 20826960]

約数ペア:

[(1, 20826960), (2, 10413480), (3, 6942320), (4, 5206740), (5, 4165392), (6, 3471160), (7, 2975280), (8, 2603370), (10, 2082696), (11, 1893360), (12, 1735580), (14, 1487640), (15, 1388464), (16, 1301685), (20, 1041348), (21, 991760), (22, 946680), (23, 905520), (24, 867790), (28, 743820), (30, 694232), (33, 631120), (35, 595056), (40, 520674), (42, 495880), (44, 473340), (46, 452760), (48, 433895), (49, 425040), (55, 378672), (56, 371910), (60, 347116), (66, 315560), (69, 301840), (70, 297528), (77, 270480), (80, 260337), (84, 247940), (88, 236670), (92, 226380), (98, 212520), (105, 198352), (110, 189336), (112, 185955), (115, 181104), (120, 173558), (132, 157780), (138, 150920), (140, 148764), (147, 141680), (154, 135240), (161, 129360), (165, 126224), (168, 123970), (176, 118335), (184, 113190), (196, 106260), (210, 99176), (220, 94668), (230, 90552), (231, 90160), (240, 86779), (245, 85008), (253, 82320), (264, 78890), (276, 75460), (280, 74382), (294, 70840), (308, 67620), (322, 64680), (330, 63112), (336, 61985), (343, 60720), (345, 60368), (368, 56595), (385, 54096), (392, 53130), (420, 49588), (440, 47334), (460, 45276), (462, 45080), (483, 43120), (490, 42504), (506, 41160), (528, 39445), (539, 38640), (552, 37730), (560, 37191), (588, 35420), (616, 33810), (644, 32340), (660, 31556), (686, 30360), (690, 30184), (735, 28336), (759, 27440), (770, 27048), (784, 26565), (805, 25872), (840, 24794), (880, 23667), (920, 22638), (924, 22540), (966, 21560), (980, 21252), (1012, 20580), (1029, 20240), (1078, 19320), (1104, 18865), (1127, 18480), (1155, 18032), (1176, 17710), (1232, 16905), (1265, 16464), (1288, 16170), (1320, 15778), (1372, 15180), (1380, 15092), (1470, 14168), (1518, 13720), (1540, 13524), (1610, 12936), (1617, 12880), (1680, 12397), (1715, 12144), (1771, 11760), (1840, 11319), (1848, 11270), (1932, 10780), (1960, 10626), (2024, 10290), (2058, 10120), (2156, 9660), (2254, 9240), (2310, 9016), (2352, 8855), (2415, 8624), (2530, 8232), (2576, 8085), (2640, 7889), (2695, 7728), (2744, 7590), (2760, 7546), (2940, 7084), (3036, 6860), (3080, 6762), (3220, 6468), (3234, 6440), (3381, 6160), (3430, 6072), (3542, 5880), (3696, 5635), (3773, 5520), (3795, 5488), (3864, 5390), (3920, 5313), (4048, 5145), (4116, 5060), (4312, 4830), (4508, 4620)]