19955712

素因数分解:

$2^{15}\times 3^1\times 7^1\times {\mathrm{29}}^1$

素因数の和:69

約数の個数: 128

約数和(自身を含む): 62913600

約数和(自身を除く): 42957888

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, 77952, 86016, 89088, 98304, 103936, 114688, 118784, 155904, 172032, 178176, 207872, 229376, 237568, 311808, 344064, 356352, 415744, 475136, 623616, 688128, 712704, 831488, 950272, 1247232, 1425408, 1662976, 2494464, 2850816, 3325952, 4988928, 6651904, 9977856, 19955712]

約数ペア:

[(1, 19955712), (2, 9977856), (3, 6651904), (4, 4988928), (6, 3325952), (7, 2850816), (8, 2494464), (12, 1662976), (14, 1425408), (16, 1247232), (21, 950272), (24, 831488), (28, 712704), (29, 688128), (32, 623616), (42, 475136), (48, 415744), (56, 356352), (58, 344064), (64, 311808), (84, 237568), (87, 229376), (96, 207872), (112, 178176), (116, 172032), (128, 155904), (168, 118784), (174, 114688), (192, 103936), (203, 98304), (224, 89088), (232, 86016), (256, 77952), (336, 59392), (348, 57344), (384, 51968), (406, 49152), (448, 44544), (464, 43008), (512, 38976), (609, 32768), (672, 29696), (696, 28672), (768, 25984), (812, 24576), (896, 22272), (928, 21504), (1024, 19488), (1218, 16384), (1344, 14848), (1392, 14336), (1536, 12992), (1624, 12288), (1792, 11136), (1856, 10752), (2048, 9744), (2436, 8192), (2688, 7424), (2784, 7168), (3072, 6496), (3248, 6144), (3584, 5568), (3712, 5376), (4096, 4872)]