639292416

素因数分解:

$2^{10}\times 3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:205

約数の個数: 264

約数和(自身を含む): 2061017856

約数和(自身を除く): 1421725440

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 31, 32, 42, 48, 49, 56, 62, 64, 84, 93, 96, 98, 112, 124, 128, 137, 147, 168, 186, 192, 196, 217, 224, 248, 256, 274, 294, 336, 372, 384, 392, 411, 434, 448, 496, 512, 548, 588, 651, 672, 744, 768, 784, 822, 868, 896, 959, 992, 1024, 1096, 1176, 1302, 1344, 1488, 1519, 1536, 1568, 1644, 1736, 1792, 1918, 1984, 2192, 2352, 2604, 2688, 2877, 2976, 3038, 3072, 3136, 3288, 3472, 3584, 3836, 3968, 4247, 4384, 4557, 4704, 5208, 5376, 5754, 5952, 6076, 6272, 6576, 6713, 6944, 7168, 7672, 7936, 8494, 8768, 9114, 9408, 10416, 10752, 11508, 11904, 12152, 12544, 12741, 13152, 13426, 13888, 15344, 15872, 16988, 17536, 18228, 18816, 20139, 20832, 21504, 23016, 23808, 24304, 25088, 25482, 26304, 26852, 27776, 29729, 30688, 31744, 33976, 35072, 36456, 37632, 40278, 41664, 46032, 47616, 48608, 50176, 50964, 52608, 53704, 55552, 59458, 61376, 67952, 70144, 72912, 75264, 80556, 83328, 89187, 92064, 95232, 97216, 101928, 105216, 107408, 111104, 118916, 122752, 135904, 140288, 145824, 150528, 161112, 166656, 178374, 184128, 194432, 203856, 208103, 210432, 214816, 222208, 237832, 245504, 271808, 291648, 322224, 333312, 356748, 368256, 388864, 407712, 416206, 420864, 429632, 475664, 491008, 543616, 583296, 624309, 644448, 666624, 713496, 736512, 777728, 815424, 832412, 859264, 951328, 982016, 1087232, 1166592, 1248618, 1288896, 1426992, 1473024, 1555456, 1630848, 1664824, 1718528, 1902656, 2174464, 2333184, 2497236, 2577792, 2853984, 2946048, 3261696, 3329648, 3437056, 3805312, 4348928, 4666368, 4994472, 5155584, 5707968, 6523392, 6659296, 6874112, 7610624, 9988944, 10311168, 11415936, 13046784, 13318592, 15221248, 19977888, 20622336, 22831872, 26637184, 30442496, 39955776, 45663744, 53274368, 79911552, 91327488, 106548736, 159823104, 213097472, 319646208, 639292416]

約数ペア:

[(1, 639292416), (2, 319646208), (3, 213097472), (4, 159823104), (6, 106548736), (7, 91327488), (8, 79911552), (12, 53274368), (14, 45663744), (16, 39955776), (21, 30442496), (24, 26637184), (28, 22831872), (31, 20622336), (32, 19977888), (42, 15221248), (48, 13318592), (49, 13046784), (56, 11415936), (62, 10311168), (64, 9988944), (84, 7610624), (93, 6874112), (96, 6659296), (98, 6523392), (112, 5707968), (124, 5155584), (128, 4994472), (137, 4666368), (147, 4348928), (168, 3805312), (186, 3437056), (192, 3329648), (196, 3261696), (217, 2946048), (224, 2853984), (248, 2577792), (256, 2497236), (274, 2333184), (294, 2174464), (336, 1902656), (372, 1718528), (384, 1664824), (392, 1630848), (411, 1555456), (434, 1473024), (448, 1426992), (496, 1288896), (512, 1248618), (548, 1166592), (588, 1087232), (651, 982016), (672, 951328), (744, 859264), (768, 832412), (784, 815424), (822, 777728), (868, 736512), (896, 713496), (959, 666624), (992, 644448), (1024, 624309), (1096, 583296), (1176, 543616), (1302, 491008), (1344, 475664), (1488, 429632), (1519, 420864), (1536, 416206), (1568, 407712), (1644, 388864), (1736, 368256), (1792, 356748), (1918, 333312), (1984, 322224), (2192, 291648), (2352, 271808), (2604, 245504), (2688, 237832), (2877, 222208), (2976, 214816), (3038, 210432), (3072, 208103), (3136, 203856), (3288, 194432), (3472, 184128), (3584, 178374), (3836, 166656), (3968, 161112), (4247, 150528), (4384, 145824), (4557, 140288), (4704, 135904), (5208, 122752), (5376, 118916), (5754, 111104), (5952, 107408), (6076, 105216), (6272, 101928), (6576, 97216), (6713, 95232), (6944, 92064), (7168, 89187), (7672, 83328), (7936, 80556), (8494, 75264), (8768, 72912), (9114, 70144), (9408, 67952), (10416, 61376), (10752, 59458), (11508, 55552), (11904, 53704), (12152, 52608), (12544, 50964), (12741, 50176), (13152, 48608), (13426, 47616), (13888, 46032), (15344, 41664), (15872, 40278), (16988, 37632), (17536, 36456), (18228, 35072), (18816, 33976), (20139, 31744), (20832, 30688), (21504, 29729), (23016, 27776), (23808, 26852), (24304, 26304), (25088, 25482)]