20855808

素因数分解:

$2^{10}\times 3^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:130

約数の個数: 132

約数和(自身を含む): 63014848

約数和(自身を除く): 42159040

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 62, 64, 72, 73, 93, 96, 124, 128, 144, 146, 186, 192, 219, 248, 256, 279, 288, 292, 372, 384, 438, 496, 512, 558, 576, 584, 657, 744, 768, 876, 992, 1024, 1116, 1152, 1168, 1314, 1488, 1536, 1752, 1984, 2232, 2263, 2304, 2336, 2628, 2976, 3072, 3504, 3968, 4464, 4526, 4608, 4672, 5256, 5952, 6789, 7008, 7936, 8928, 9052, 9216, 9344, 10512, 11904, 13578, 14016, 15872, 17856, 18104, 18688, 20367, 21024, 23808, 27156, 28032, 31744, 35712, 36208, 37376, 40734, 42048, 47616, 54312, 56064, 71424, 72416, 74752, 81468, 84096, 95232, 108624, 112128, 142848, 144832, 162936, 168192, 217248, 224256, 285696, 289664, 325872, 336384, 434496, 579328, 651744, 672768, 868992, 1158656, 1303488, 1737984, 2317312, 2606976, 3475968, 5213952, 6951936, 10427904, 20855808]

約数ペア:

[(1, 20855808), (2, 10427904), (3, 6951936), (4, 5213952), (6, 3475968), (8, 2606976), (9, 2317312), (12, 1737984), (16, 1303488), (18, 1158656), (24, 868992), (31, 672768), (32, 651744), (36, 579328), (48, 434496), (62, 336384), (64, 325872), (72, 289664), (73, 285696), (93, 224256), (96, 217248), (124, 168192), (128, 162936), (144, 144832), (146, 142848), (186, 112128), (192, 108624), (219, 95232), (248, 84096), (256, 81468), (279, 74752), (288, 72416), (292, 71424), (372, 56064), (384, 54312), (438, 47616), (496, 42048), (512, 40734), (558, 37376), (576, 36208), (584, 35712), (657, 31744), (744, 28032), (768, 27156), (876, 23808), (992, 21024), (1024, 20367), (1116, 18688), (1152, 18104), (1168, 17856), (1314, 15872), (1488, 14016), (1536, 13578), (1752, 11904), (1984, 10512), (2232, 9344), (2263, 9216), (2304, 9052), (2336, 8928), (2628, 7936), (2976, 7008), (3072, 6789), (3504, 5952), (3968, 5256), (4464, 4672), (4526, 4608)]