20551262760

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{87691}}^1$

素因数の和:87749

約数の個数: 256

約数和(自身を含む): 80816947200

約数和(自身を除く): 60265684440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 31, 35, 36, 40, 42, 45, 54, 56, 60, 62, 63, 70, 72, 84, 90, 93, 105, 108, 120, 124, 126, 135, 140, 155, 168, 180, 186, 189, 210, 216, 217, 248, 252, 270, 279, 280, 310, 315, 360, 372, 378, 420, 434, 465, 504, 540, 558, 620, 630, 651, 744, 756, 837, 840, 868, 930, 945, 1080, 1085, 1116, 1240, 1260, 1302, 1395, 1512, 1674, 1736, 1860, 1890, 1953, 2170, 2232, 2520, 2604, 2790, 3255, 3348, 3720, 3780, 3906, 4185, 4340, 5208, 5580, 5859, 6510, 6696, 7560, 7812, 8370, 8680, 9765, 11160, 11718, 13020, 15624, 16740, 19530, 23436, 26040, 29295, 33480, 39060, 46872, 58590, 78120, 87691, 117180, 175382, 234360, 263073, 350764, 438455, 526146, 613837, 701528, 789219, 876910, 1052292, 1227674, 1315365, 1578438, 1753820, 1841511, 2104584, 2367657, 2455348, 2630730, 2718421, 3069185, 3156876, 3507640, 3683022, 3946095, 4735314, 4910696, 5261460, 5436842, 5524533, 6138370, 6313752, 7366044, 7892190, 8155263, 9207555, 9470628, 10522920, 10873684, 11049066, 11838285, 12276740, 13592105, 14732088, 15784380, 16310526, 16573599, 18415110, 18941256, 19028947, 21747368, 22098132, 23676570, 24465789, 24553480, 27184210, 27622665, 31568760, 32621052, 33147198, 36830220, 38057894, 40776315, 44196264, 47353140, 48931578, 54368420, 55245330, 57086841, 65242104, 66294396, 73397367, 73660440, 76115788, 81552630, 82867995, 94706280, 95144735, 97863156, 108736840, 110490660, 114173682, 122328945, 132588792, 146794734, 152231576, 163105260, 165735990, 171260523, 190289470, 195726312, 220981320, 228347364, 244657890, 285434205, 293589468, 326210520, 331471980, 342521046, 366986835, 380578940, 456694728, 489315780, 513781569, 570868410, 587178936, 662943960, 685042092, 733973670, 761157880, 856302615, 978631560, 1027563138, 1141736820, 1370084184, 1467947340, 1712605230, 2055126276, 2283473640, 2568907845, 2935894680, 3425210460, 4110252552, 5137815690, 6850420920, 10275631380, 20551262760]

約数ペア:

[(1, 20551262760), (2, 10275631380), (3, 6850420920), (4, 5137815690), (5, 4110252552), (6, 3425210460), (7, 2935894680), (8, 2568907845), (9, 2283473640), (10, 2055126276), (12, 1712605230), (14, 1467947340), (15, 1370084184), (18, 1141736820), (20, 1027563138), (21, 978631560), (24, 856302615), (27, 761157880), (28, 733973670), (30, 685042092), (31, 662943960), (35, 587178936), (36, 570868410), (40, 513781569), (42, 489315780), (45, 456694728), (54, 380578940), (56, 366986835), (60, 342521046), (62, 331471980), (63, 326210520), (70, 293589468), (72, 285434205), (84, 244657890), (90, 228347364), (93, 220981320), (105, 195726312), (108, 190289470), (120, 171260523), (124, 165735990), (126, 163105260), (135, 152231576), (140, 146794734), (155, 132588792), (168, 122328945), (180, 114173682), (186, 110490660), (189, 108736840), (210, 97863156), (216, 95144735), (217, 94706280), (248, 82867995), (252, 81552630), (270, 76115788), (279, 73660440), (280, 73397367), (310, 66294396), (315, 65242104), (360, 57086841), (372, 55245330), (378, 54368420), (420, 48931578), (434, 47353140), (465, 44196264), (504, 40776315), (540, 38057894), (558, 36830220), (620, 33147198), (630, 32621052), (651, 31568760), (744, 27622665), (756, 27184210), (837, 24553480), (840, 24465789), (868, 23676570), (930, 22098132), (945, 21747368), (1080, 19028947), (1085, 18941256), (1116, 18415110), (1240, 16573599), (1260, 16310526), (1302, 15784380), (1395, 14732088), (1512, 13592105), (1674, 12276740), (1736, 11838285), (1860, 11049066), (1890, 10873684), (1953, 10522920), (2170, 9470628), (2232, 9207555), (2520, 8155263), (2604, 7892190), (2790, 7366044), (3255, 6313752), (3348, 6138370), (3720, 5524533), (3780, 5436842), (3906, 5261460), (4185, 4910696), (4340, 4735314), (5208, 3946095), (5580, 3683022), (5859, 3507640), (6510, 3156876), (6696, 3069185), (7560, 2718421), (7812, 2630730), (8370, 2455348), (8680, 2367657), (9765, 2104584), (11160, 1841511), (11718, 1753820), (13020, 1578438), (15624, 1315365), (16740, 1227674), (19530, 1052292), (23436, 876910), (26040, 789219), (29295, 701528), (33480, 613837), (39060, 526146), (46872, 438455), (58590, 350764), (78120, 263073), (87691, 234360), (117180, 175382)]