638943552

素因数分解:

$2^6\times 3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1$

素因数の和:555

約数の個数: 280

約数和(自身を含む): 2151380000

約数和(自身を除く): 1512436448

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 19, 24, 26, 27, 32, 36, 38, 39, 48, 52, 54, 57, 64, 72, 76, 78, 81, 96, 104, 108, 114, 117, 144, 152, 156, 162, 171, 192, 208, 216, 228, 234, 247, 288, 304, 312, 324, 342, 351, 416, 432, 456, 468, 494, 499, 513, 576, 608, 624, 648, 684, 702, 741, 832, 864, 912, 936, 988, 998, 1026, 1053, 1216, 1248, 1296, 1368, 1404, 1482, 1497, 1539, 1728, 1824, 1872, 1976, 1996, 2052, 2106, 2223, 2496, 2592, 2736, 2808, 2964, 2994, 3078, 3648, 3744, 3952, 3992, 4104, 4212, 4446, 4491, 5184, 5472, 5616, 5928, 5988, 6156, 6487, 6669, 7488, 7904, 7984, 8208, 8424, 8892, 8982, 9481, 10944, 11232, 11856, 11976, 12312, 12974, 13338, 13473, 15808, 15968, 16416, 16848, 17784, 17964, 18962, 19461, 20007, 22464, 23712, 23952, 24624, 25948, 26676, 26946, 28443, 31936, 32832, 33696, 35568, 35928, 37924, 38922, 40014, 40419, 47424, 47904, 49248, 51896, 53352, 53892, 56886, 58383, 67392, 71136, 71856, 75848, 77844, 80028, 80838, 85329, 95808, 98496, 103792, 106704, 107784, 113772, 116766, 123253, 142272, 143712, 151696, 155688, 160056, 161676, 170658, 175149, 207584, 213408, 215568, 227544, 233532, 246506, 255987, 287424, 303392, 311376, 320112, 323352, 341316, 350298, 369759, 415168, 426816, 431136, 455088, 467064, 493012, 511974, 525447, 606784, 622752, 640224, 646704, 682632, 700596, 739518, 767961, 862272, 910176, 934128, 986024, 1023948, 1050894, 1109277, 1245504, 1280448, 1293408, 1365264, 1401192, 1479036, 1535922, 1820352, 1868256, 1972048, 2047896, 2101788, 2218554, 2586816, 2730528, 2802384, 2958072, 3071844, 3327831, 3736512, 3944096, 4095792, 4203576, 4437108, 5461056, 5604768, 5916144, 6143688, 6655662, 7888192, 8191584, 8407152, 8874216, 9983493, 11209536, 11832288, 12287376, 13311324, 16383168, 16814304, 17748432, 19966986, 23664576, 24574752, 26622648, 33628608, 35496864, 39933972, 49149504, 53245296, 70993728, 79867944, 106490592, 159735888, 212981184, 319471776, 638943552]

約数ペア:

[(1, 638943552), (2, 319471776), (3, 212981184), (4, 159735888), (6, 106490592), (8, 79867944), (9, 70993728), (12, 53245296), (13, 49149504), (16, 39933972), (18, 35496864), (19, 33628608), (24, 26622648), (26, 24574752), (27, 23664576), (32, 19966986), (36, 17748432), (38, 16814304), (39, 16383168), (48, 13311324), (52, 12287376), (54, 11832288), (57, 11209536), (64, 9983493), (72, 8874216), (76, 8407152), (78, 8191584), (81, 7888192), (96, 6655662), (104, 6143688), (108, 5916144), (114, 5604768), (117, 5461056), (144, 4437108), (152, 4203576), (156, 4095792), (162, 3944096), (171, 3736512), (192, 3327831), (208, 3071844), (216, 2958072), (228, 2802384), (234, 2730528), (247, 2586816), (288, 2218554), (304, 2101788), (312, 2047896), (324, 1972048), (342, 1868256), (351, 1820352), (416, 1535922), (432, 1479036), (456, 1401192), (468, 1365264), (494, 1293408), (499, 1280448), (513, 1245504), (576, 1109277), (608, 1050894), (624, 1023948), (648, 986024), (684, 934128), (702, 910176), (741, 862272), (832, 767961), (864, 739518), (912, 700596), (936, 682632), (988, 646704), (998, 640224), (1026, 622752), (1053, 606784), (1216, 525447), (1248, 511974), (1296, 493012), (1368, 467064), (1404, 455088), (1482, 431136), (1497, 426816), (1539, 415168), (1728, 369759), (1824, 350298), (1872, 341316), (1976, 323352), (1996, 320112), (2052, 311376), (2106, 303392), (2223, 287424), (2496, 255987), (2592, 246506), (2736, 233532), (2808, 227544), (2964, 215568), (2994, 213408), (3078, 207584), (3648, 175149), (3744, 170658), (3952, 161676), (3992, 160056), (4104, 155688), (4212, 151696), (4446, 143712), (4491, 142272), (5184, 123253), (5472, 116766), (5616, 113772), (5928, 107784), (5988, 106704), (6156, 103792), (6487, 98496), (6669, 95808), (7488, 85329), (7904, 80838), (7984, 80028), (8208, 77844), (8424, 75848), (8892, 71856), (8982, 71136), (9481, 67392), (10944, 58383), (11232, 56886), (11856, 53892), (11976, 53352), (12312, 51896), (12974, 49248), (13338, 47904), (13473, 47424), (15808, 40419), (15968, 40014), (16416, 38922), (16848, 37924), (17784, 35928), (17964, 35568), (18962, 33696), (19461, 32832), (20007, 31936), (22464, 28443), (23712, 26946), (23952, 26676), (24624, 25948)]