638582784

素因数分解:

$2^{20}\times 3^1\times 7^1\times {\mathrm{29}}^1$

素因数の和:79

約数の個数: 168

約数和(自身を含む): 2013264960

約数和(自身を除く): 1374682176

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 29, 32, 42, 48, 56, 58, 64, 84, 87, 96, 112, 116, 128, 168, 174, 192, 203, 224, 232, 256, 336, 348, 384, 406, 448, 464, 512, 609, 672, 696, 768, 812, 896, 928, 1024, 1218, 1344, 1392, 1536, 1624, 1792, 1856, 2048, 2436, 2688, 2784, 3072, 3248, 3584, 3712, 4096, 4872, 5376, 5568, 6144, 6496, 7168, 7424, 8192, 9744, 10752, 11136, 12288, 12992, 14336, 14848, 16384, 19488, 21504, 22272, 24576, 25984, 28672, 29696, 32768, 38976, 43008, 44544, 49152, 51968, 57344, 59392, 65536, 77952, 86016, 89088, 98304, 103936, 114688, 118784, 131072, 155904, 172032, 178176, 196608, 207872, 229376, 237568, 262144, 311808, 344064, 356352, 393216, 415744, 458752, 475136, 524288, 623616, 688128, 712704, 786432, 831488, 917504, 950272, 1048576, 1247232, 1376256, 1425408, 1572864, 1662976, 1835008, 1900544, 2494464, 2752512, 2850816, 3145728, 3325952, 3670016, 3801088, 4988928, 5505024, 5701632, 6651904, 7340032, 7602176, 9977856, 11010048, 11403264, 13303808, 15204352, 19955712, 22020096, 22806528, 26607616, 30408704, 39911424, 45613056, 53215232, 79822848, 91226112, 106430464, 159645696, 212860928, 319291392, 638582784]

約数ペア:

[(1, 638582784), (2, 319291392), (3, 212860928), (4, 159645696), (6, 106430464), (7, 91226112), (8, 79822848), (12, 53215232), (14, 45613056), (16, 39911424), (21, 30408704), (24, 26607616), (28, 22806528), (29, 22020096), (32, 19955712), (42, 15204352), (48, 13303808), (56, 11403264), (58, 11010048), (64, 9977856), (84, 7602176), (87, 7340032), (96, 6651904), (112, 5701632), (116, 5505024), (128, 4988928), (168, 3801088), (174, 3670016), (192, 3325952), (203, 3145728), (224, 2850816), (232, 2752512), (256, 2494464), (336, 1900544), (348, 1835008), (384, 1662976), (406, 1572864), (448, 1425408), (464, 1376256), (512, 1247232), (609, 1048576), (672, 950272), (696, 917504), (768, 831488), (812, 786432), (896, 712704), (928, 688128), (1024, 623616), (1218, 524288), (1344, 475136), (1392, 458752), (1536, 415744), (1624, 393216), (1792, 356352), (1856, 344064), (2048, 311808), (2436, 262144), (2688, 237568), (2784, 229376), (3072, 207872), (3248, 196608), (3584, 178176), (3712, 172032), (4096, 155904), (4872, 131072), (5376, 118784), (5568, 114688), (6144, 103936), (6496, 98304), (7168, 89088), (7424, 86016), (8192, 77952), (9744, 65536), (10752, 59392), (11136, 57344), (12288, 51968), (12992, 49152), (14336, 44544), (14848, 43008), (16384, 38976), (19488, 32768), (21504, 29696), (22272, 28672), (24576, 25984)]