278414080

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:251

約数の個数: 216

約数和(自身を含む): 813691872

約数和(自身を除く): 535277792

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 49, 56, 64, 70, 80, 92, 98, 112, 115, 128, 140, 160, 161, 184, 193, 196, 224, 230, 245, 256, 280, 320, 322, 368, 386, 392, 448, 460, 490, 560, 640, 644, 736, 772, 784, 805, 896, 920, 965, 980, 1120, 1127, 1280, 1288, 1351, 1472, 1544, 1568, 1610, 1792, 1840, 1930, 1960, 2240, 2254, 2576, 2702, 2944, 3088, 3136, 3220, 3680, 3860, 3920, 4439, 4480, 4508, 5152, 5404, 5635, 5888, 6176, 6272, 6440, 6755, 7360, 7720, 7840, 8878, 8960, 9016, 9457, 10304, 10808, 11270, 12352, 12544, 12880, 13510, 14720, 15440, 15680, 17756, 18032, 18914, 20608, 21616, 22195, 22540, 24704, 25760, 27020, 29440, 30880, 31073, 31360, 35512, 36064, 37828, 41216, 43232, 44390, 45080, 47285, 49408, 51520, 54040, 61760, 62146, 62720, 71024, 72128, 75656, 86464, 88780, 90160, 94570, 103040, 108080, 123520, 124292, 142048, 144256, 151312, 155365, 172928, 177560, 180320, 189140, 206080, 216160, 217511, 247040, 248584, 284096, 288512, 302624, 310730, 345856, 355120, 360640, 378280, 432320, 435022, 497168, 568192, 605248, 621460, 710240, 721280, 756560, 864640, 870044, 994336, 1087555, 1136384, 1210496, 1242920, 1420480, 1442560, 1513120, 1729280, 1740088, 1988672, 2175110, 2420992, 2485840, 2840960, 3026240, 3480176, 3977344, 4350220, 4971680, 5681920, 6052480, 6960352, 7954688, 8700440, 9943360, 12104960, 13920704, 17400880, 19886720, 27841408, 34801760, 39773440, 55682816, 69603520, 139207040, 278414080]

約数ペア:

[(1, 278414080), (2, 139207040), (4, 69603520), (5, 55682816), (7, 39773440), (8, 34801760), (10, 27841408), (14, 19886720), (16, 17400880), (20, 13920704), (23, 12104960), (28, 9943360), (32, 8700440), (35, 7954688), (40, 6960352), (46, 6052480), (49, 5681920), (56, 4971680), (64, 4350220), (70, 3977344), (80, 3480176), (92, 3026240), (98, 2840960), (112, 2485840), (115, 2420992), (128, 2175110), (140, 1988672), (160, 1740088), (161, 1729280), (184, 1513120), (193, 1442560), (196, 1420480), (224, 1242920), (230, 1210496), (245, 1136384), (256, 1087555), (280, 994336), (320, 870044), (322, 864640), (368, 756560), (386, 721280), (392, 710240), (448, 621460), (460, 605248), (490, 568192), (560, 497168), (640, 435022), (644, 432320), (736, 378280), (772, 360640), (784, 355120), (805, 345856), (896, 310730), (920, 302624), (965, 288512), (980, 284096), (1120, 248584), (1127, 247040), (1280, 217511), (1288, 216160), (1351, 206080), (1472, 189140), (1544, 180320), (1568, 177560), (1610, 172928), (1792, 155365), (1840, 151312), (1930, 144256), (1960, 142048), (2240, 124292), (2254, 123520), (2576, 108080), (2702, 103040), (2944, 94570), (3088, 90160), (3136, 88780), (3220, 86464), (3680, 75656), (3860, 72128), (3920, 71024), (4439, 62720), (4480, 62146), (4508, 61760), (5152, 54040), (5404, 51520), (5635, 49408), (5888, 47285), (6176, 45080), (6272, 44390), (6440, 43232), (6755, 41216), (7360, 37828), (7720, 36064), (7840, 35512), (8878, 31360), (8960, 31073), (9016, 30880), (9457, 29440), (10304, 27020), (10808, 25760), (11270, 24704), (12352, 22540), (12544, 22195), (12880, 21616), (13510, 20608), (14720, 18914), (15440, 18032), (15680, 17756)]