131272960

素因数分解:

$2^8\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1$

素因数の和:78

約数の個数: 288

約数和(自身を含む): 412070400

約数和(自身を除く): 280797440

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 23, 26, 28, 32, 35, 40, 46, 49, 52, 56, 64, 65, 70, 80, 91, 92, 98, 104, 112, 115, 128, 130, 140, 160, 161, 182, 184, 196, 208, 224, 230, 245, 256, 260, 280, 299, 320, 322, 343, 364, 368, 392, 416, 448, 455, 460, 490, 520, 560, 598, 637, 640, 644, 686, 728, 736, 784, 805, 832, 896, 910, 920, 980, 1040, 1120, 1127, 1196, 1274, 1280, 1288, 1372, 1456, 1472, 1495, 1568, 1610, 1664, 1715, 1792, 1820, 1840, 1960, 2080, 2093, 2240, 2254, 2392, 2548, 2576, 2744, 2912, 2944, 2990, 3136, 3185, 3220, 3328, 3430, 3640, 3680, 3920, 4160, 4186, 4459, 4480, 4508, 4784, 5096, 5152, 5488, 5635, 5824, 5888, 5980, 6272, 6370, 6440, 6860, 7280, 7360, 7840, 7889, 8320, 8372, 8918, 8960, 9016, 9568, 10192, 10304, 10465, 10976, 11270, 11648, 11960, 12544, 12740, 12880, 13720, 14560, 14651, 14720, 15680, 15778, 16640, 16744, 17836, 18032, 19136, 20384, 20608, 20930, 21952, 22295, 22540, 23296, 23920, 25480, 25760, 27440, 29120, 29302, 29440, 31360, 31556, 33488, 35672, 36064, 38272, 39445, 40768, 41216, 41860, 43904, 44590, 45080, 47840, 50960, 51520, 54880, 58240, 58604, 62720, 63112, 66976, 71344, 72128, 73255, 76544, 78890, 81536, 83720, 87808, 89180, 90160, 95680, 101920, 102557, 103040, 109760, 116480, 117208, 126224, 133952, 142688, 144256, 146510, 157780, 163072, 167440, 178360, 180320, 191360, 203840, 205114, 206080, 219520, 234416, 252448, 267904, 285376, 288512, 293020, 315560, 334880, 356720, 360640, 382720, 407680, 410228, 439040, 468832, 504896, 512785, 535808, 570752, 586040, 631120, 669760, 713440, 721280, 815360, 820456, 937664, 1009792, 1025570, 1141504, 1172080, 1262240, 1339520, 1426880, 1442560, 1640912, 1875328, 2019584, 2051140, 2344160, 2524480, 2679040, 2853760, 3281824, 3750656, 4102280, 4688320, 5048960, 5707520, 6563648, 8204560, 9376640, 10097920, 13127296, 16409120, 18753280, 26254592, 32818240, 65636480, 131272960]

約数ペア:

[(1, 131272960), (2, 65636480), (4, 32818240), (5, 26254592), (7, 18753280), (8, 16409120), (10, 13127296), (13, 10097920), (14, 9376640), (16, 8204560), (20, 6563648), (23, 5707520), (26, 5048960), (28, 4688320), (32, 4102280), (35, 3750656), (40, 3281824), (46, 2853760), (49, 2679040), (52, 2524480), (56, 2344160), (64, 2051140), (65, 2019584), (70, 1875328), (80, 1640912), (91, 1442560), (92, 1426880), (98, 1339520), (104, 1262240), (112, 1172080), (115, 1141504), (128, 1025570), (130, 1009792), (140, 937664), (160, 820456), (161, 815360), (182, 721280), (184, 713440), (196, 669760), (208, 631120), (224, 586040), (230, 570752), (245, 535808), (256, 512785), (260, 504896), (280, 468832), (299, 439040), (320, 410228), (322, 407680), (343, 382720), (364, 360640), (368, 356720), (392, 334880), (416, 315560), (448, 293020), (455, 288512), (460, 285376), (490, 267904), (520, 252448), (560, 234416), (598, 219520), (637, 206080), (640, 205114), (644, 203840), (686, 191360), (728, 180320), (736, 178360), (784, 167440), (805, 163072), (832, 157780), (896, 146510), (910, 144256), (920, 142688), (980, 133952), (1040, 126224), (1120, 117208), (1127, 116480), (1196, 109760), (1274, 103040), (1280, 102557), (1288, 101920), (1372, 95680), (1456, 90160), (1472, 89180), (1495, 87808), (1568, 83720), (1610, 81536), (1664, 78890), (1715, 76544), (1792, 73255), (1820, 72128), (1840, 71344), (1960, 66976), (2080, 63112), (2093, 62720), (2240, 58604), (2254, 58240), (2392, 54880), (2548, 51520), (2576, 50960), (2744, 47840), (2912, 45080), (2944, 44590), (2990, 43904), (3136, 41860), (3185, 41216), (3220, 40768), (3328, 39445), (3430, 38272), (3640, 36064), (3680, 35672), (3920, 33488), (4160, 31556), (4186, 31360), (4459, 29440), (4480, 29302), (4508, 29120), (4784, 27440), (5096, 25760), (5152, 25480), (5488, 23920), (5635, 23296), (5824, 22540), (5888, 22295), (5980, 21952), (6272, 20930), (6370, 20608), (6440, 20384), (6860, 19136), (7280, 18032), (7360, 17836), (7840, 16744), (7889, 16640), (8320, 15778), (8372, 15680), (8918, 14720), (8960, 14651), (9016, 14560), (9568, 13720), (10192, 12880), (10304, 12740), (10465, 12544), (10976, 11960), (11270, 11648)]