66447920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:128

約数の個数: 240

約数和(自身を含む): 207629568

約数和(自身を除く): 141181648

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 23, 28, 35, 40, 44, 46, 49, 55, 56, 67, 70, 77, 80, 88, 92, 98, 110, 112, 115, 134, 140, 154, 161, 176, 184, 196, 220, 230, 245, 253, 268, 280, 308, 322, 335, 368, 385, 392, 440, 460, 469, 490, 506, 536, 539, 560, 616, 644, 670, 737, 770, 784, 805, 880, 920, 938, 980, 1012, 1072, 1078, 1127, 1232, 1265, 1288, 1340, 1474, 1540, 1541, 1610, 1771, 1840, 1876, 1960, 2024, 2156, 2254, 2345, 2530, 2576, 2680, 2695, 2948, 3080, 3082, 3220, 3283, 3542, 3685, 3752, 3920, 4048, 4312, 4508, 4690, 5060, 5159, 5360, 5390, 5635, 5896, 6160, 6164, 6440, 6566, 7084, 7370, 7504, 7705, 8624, 8855, 9016, 9380, 10120, 10318, 10780, 10787, 11270, 11792, 12328, 12397, 12880, 13132, 14168, 14740, 15410, 16415, 16951, 17710, 18032, 18760, 20240, 20636, 21560, 21574, 22540, 24656, 24794, 25795, 26264, 28336, 29480, 30820, 32830, 33902, 35420, 36113, 37520, 41272, 43120, 43148, 45080, 49588, 51590, 52528, 53935, 58960, 61640, 61985, 65660, 67804, 70840, 72226, 75509, 82544, 84755, 86296, 90160, 99176, 103180, 107870, 118657, 123280, 123970, 131320, 135608, 141680, 144452, 151018, 169510, 172592, 180565, 198352, 206360, 215740, 237314, 247940, 262640, 271216, 288904, 302036, 339020, 361130, 377545, 412720, 431480, 474628, 495880, 577808, 593285, 604072, 678040, 722260, 755090, 830599, 862960, 949256, 991760, 1186570, 1208144, 1356080, 1444520, 1510180, 1661198, 1898512, 2373140, 2889040, 3020360, 3322396, 4152995, 4746280, 6040720, 6644792, 8305990, 9492560, 13289584, 16611980, 33223960, 66447920]

約数ペア:

[(1, 66447920), (2, 33223960), (4, 16611980), (5, 13289584), (7, 9492560), (8, 8305990), (10, 6644792), (11, 6040720), (14, 4746280), (16, 4152995), (20, 3322396), (22, 3020360), (23, 2889040), (28, 2373140), (35, 1898512), (40, 1661198), (44, 1510180), (46, 1444520), (49, 1356080), (55, 1208144), (56, 1186570), (67, 991760), (70, 949256), (77, 862960), (80, 830599), (88, 755090), (92, 722260), (98, 678040), (110, 604072), (112, 593285), (115, 577808), (134, 495880), (140, 474628), (154, 431480), (161, 412720), (176, 377545), (184, 361130), (196, 339020), (220, 302036), (230, 288904), (245, 271216), (253, 262640), (268, 247940), (280, 237314), (308, 215740), (322, 206360), (335, 198352), (368, 180565), (385, 172592), (392, 169510), (440, 151018), (460, 144452), (469, 141680), (490, 135608), (506, 131320), (536, 123970), (539, 123280), (560, 118657), (616, 107870), (644, 103180), (670, 99176), (737, 90160), (770, 86296), (784, 84755), (805, 82544), (880, 75509), (920, 72226), (938, 70840), (980, 67804), (1012, 65660), (1072, 61985), (1078, 61640), (1127, 58960), (1232, 53935), (1265, 52528), (1288, 51590), (1340, 49588), (1474, 45080), (1540, 43148), (1541, 43120), (1610, 41272), (1771, 37520), (1840, 36113), (1876, 35420), (1960, 33902), (2024, 32830), (2156, 30820), (2254, 29480), (2345, 28336), (2530, 26264), (2576, 25795), (2680, 24794), (2695, 24656), (2948, 22540), (3080, 21574), (3082, 21560), (3220, 20636), (3283, 20240), (3542, 18760), (3685, 18032), (3752, 17710), (3920, 16951), (4048, 16415), (4312, 15410), (4508, 14740), (4690, 14168), (5060, 13132), (5159, 12880), (5360, 12397), (5390, 12328), (5635, 11792), (5896, 11270), (6160, 10787), (6164, 10780), (6440, 10318), (6566, 10120), (7084, 9380), (7370, 9016), (7504, 8855), (7705, 8624)]