281396080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{499}}^1$

素因数の和:591

約数の個数: 160

約数和(自身を含む): 803520000

約数和(自身を除く): 522123920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 53, 56, 70, 76, 80, 95, 106, 112, 133, 140, 152, 190, 212, 265, 266, 280, 304, 371, 380, 424, 499, 530, 532, 560, 665, 742, 760, 848, 998, 1007, 1060, 1064, 1330, 1484, 1520, 1855, 1996, 2014, 2120, 2128, 2495, 2660, 2968, 3493, 3710, 3992, 4028, 4240, 4990, 5035, 5320, 5936, 6986, 7049, 7420, 7984, 8056, 9481, 9980, 10070, 10640, 13972, 14098, 14840, 16112, 17465, 18962, 19960, 20140, 26447, 27944, 28196, 29680, 34930, 35245, 37924, 39920, 40280, 47405, 52894, 55888, 56392, 66367, 69860, 70490, 75848, 80560, 94810, 105788, 112784, 132235, 132734, 139720, 140980, 151696, 185129, 189620, 211576, 264470, 265468, 279440, 281960, 331835, 370258, 379240, 423152, 502493, 528940, 530936, 563920, 663670, 740516, 758480, 925645, 1004986, 1057880, 1061872, 1327340, 1481032, 1851290, 2009972, 2115760, 2512465, 2654680, 2962064, 3517451, 3702580, 4019944, 5024930, 5309360, 7034902, 7405160, 8039888, 10049860, 14069804, 14810320, 17587255, 20099720, 28139608, 35174510, 40199440, 56279216, 70349020, 140698040, 281396080]

約数ペア:

[(1, 281396080), (2, 140698040), (4, 70349020), (5, 56279216), (7, 40199440), (8, 35174510), (10, 28139608), (14, 20099720), (16, 17587255), (19, 14810320), (20, 14069804), (28, 10049860), (35, 8039888), (38, 7405160), (40, 7034902), (53, 5309360), (56, 5024930), (70, 4019944), (76, 3702580), (80, 3517451), (95, 2962064), (106, 2654680), (112, 2512465), (133, 2115760), (140, 2009972), (152, 1851290), (190, 1481032), (212, 1327340), (265, 1061872), (266, 1057880), (280, 1004986), (304, 925645), (371, 758480), (380, 740516), (424, 663670), (499, 563920), (530, 530936), (532, 528940), (560, 502493), (665, 423152), (742, 379240), (760, 370258), (848, 331835), (998, 281960), (1007, 279440), (1060, 265468), (1064, 264470), (1330, 211576), (1484, 189620), (1520, 185129), (1855, 151696), (1996, 140980), (2014, 139720), (2120, 132734), (2128, 132235), (2495, 112784), (2660, 105788), (2968, 94810), (3493, 80560), (3710, 75848), (3992, 70490), (4028, 69860), (4240, 66367), (4990, 56392), (5035, 55888), (5320, 52894), (5936, 47405), (6986, 40280), (7049, 39920), (7420, 37924), (7984, 35245), (8056, 34930), (9481, 29680), (9980, 28196), (10070, 27944), (10640, 26447), (13972, 20140), (14098, 19960), (14840, 18962), (16112, 17465)]