81213440

素因数分解:

$2^{11}\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1$

素因数の和:148

約数の個数: 192

約数和(自身を含む): 245306880

約数和(自身を除く): 164093440

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 103, 110, 112, 128, 140, 154, 160, 176, 206, 220, 224, 256, 280, 308, 320, 352, 385, 412, 440, 448, 512, 515, 560, 616, 640, 704, 721, 770, 824, 880, 896, 1024, 1030, 1120, 1133, 1232, 1280, 1408, 1442, 1540, 1648, 1760, 1792, 2048, 2060, 2240, 2266, 2464, 2560, 2816, 2884, 3080, 3296, 3520, 3584, 3605, 4120, 4480, 4532, 4928, 5120, 5632, 5665, 5768, 6160, 6592, 7040, 7168, 7210, 7931, 8240, 8960, 9064, 9856, 10240, 11264, 11330, 11536, 12320, 13184, 14080, 14336, 14420, 15862, 16480, 17920, 18128, 19712, 22528, 22660, 23072, 24640, 26368, 28160, 28840, 31724, 32960, 35840, 36256, 39424, 39655, 45320, 46144, 49280, 52736, 56320, 57680, 63448, 65920, 71680, 72512, 78848, 79310, 90640, 92288, 98560, 105472, 112640, 115360, 126896, 131840, 145024, 157696, 158620, 181280, 184576, 197120, 210944, 230720, 253792, 263680, 290048, 317240, 362560, 369152, 394240, 461440, 507584, 527360, 580096, 634480, 725120, 738304, 788480, 922880, 1015168, 1054720, 1160192, 1268960, 1450240, 1476608, 1845760, 2030336, 2320384, 2537920, 2900480, 3691520, 4060672, 5075840, 5800960, 7383040, 8121344, 10151680, 11601920, 16242688, 20303360, 40606720, 81213440]

約数ペア:

[(1, 81213440), (2, 40606720), (4, 20303360), (5, 16242688), (7, 11601920), (8, 10151680), (10, 8121344), (11, 7383040), (14, 5800960), (16, 5075840), (20, 4060672), (22, 3691520), (28, 2900480), (32, 2537920), (35, 2320384), (40, 2030336), (44, 1845760), (55, 1476608), (56, 1450240), (64, 1268960), (70, 1160192), (77, 1054720), (80, 1015168), (88, 922880), (103, 788480), (110, 738304), (112, 725120), (128, 634480), (140, 580096), (154, 527360), (160, 507584), (176, 461440), (206, 394240), (220, 369152), (224, 362560), (256, 317240), (280, 290048), (308, 263680), (320, 253792), (352, 230720), (385, 210944), (412, 197120), (440, 184576), (448, 181280), (512, 158620), (515, 157696), (560, 145024), (616, 131840), (640, 126896), (704, 115360), (721, 112640), (770, 105472), (824, 98560), (880, 92288), (896, 90640), (1024, 79310), (1030, 78848), (1120, 72512), (1133, 71680), (1232, 65920), (1280, 63448), (1408, 57680), (1442, 56320), (1540, 52736), (1648, 49280), (1760, 46144), (1792, 45320), (2048, 39655), (2060, 39424), (2240, 36256), (2266, 35840), (2464, 32960), (2560, 31724), (2816, 28840), (2884, 28160), (3080, 26368), (3296, 24640), (3520, 23072), (3584, 22660), (3605, 22528), (4120, 19712), (4480, 18128), (4532, 17920), (4928, 16480), (5120, 15862), (5632, 14420), (5665, 14336), (5768, 14080), (6160, 13184), (6592, 12320), (7040, 11536), (7168, 11330), (7210, 11264), (7931, 10240), (8240, 9856), (8960, 9064)]