257130496

素因数分解:

$2^{15}\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:115

約数の個数: 128

約数和(自身を含む): 629136000

約数和(自身を除く): 372005504

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 59, 64, 76, 112, 118, 128, 133, 152, 224, 236, 256, 266, 304, 413, 448, 472, 512, 532, 608, 826, 896, 944, 1024, 1064, 1121, 1216, 1652, 1792, 1888, 2048, 2128, 2242, 2432, 3304, 3584, 3776, 4096, 4256, 4484, 4864, 6608, 7168, 7552, 7847, 8192, 8512, 8968, 9728, 13216, 14336, 15104, 15694, 16384, 17024, 17936, 19456, 26432, 28672, 30208, 31388, 32768, 34048, 35872, 38912, 52864, 57344, 60416, 62776, 68096, 71744, 77824, 105728, 114688, 120832, 125552, 136192, 143488, 155648, 211456, 229376, 241664, 251104, 272384, 286976, 311296, 422912, 483328, 502208, 544768, 573952, 622592, 845824, 966656, 1004416, 1089536, 1147904, 1691648, 1933312, 2008832, 2179072, 2295808, 3383296, 4017664, 4358144, 4591616, 6766592, 8035328, 9183232, 13533184, 16070656, 18366464, 32141312, 36732928, 64282624, 128565248, 257130496]

約数ペア:

[(1, 257130496), (2, 128565248), (4, 64282624), (7, 36732928), (8, 32141312), (14, 18366464), (16, 16070656), (19, 13533184), (28, 9183232), (32, 8035328), (38, 6766592), (56, 4591616), (59, 4358144), (64, 4017664), (76, 3383296), (112, 2295808), (118, 2179072), (128, 2008832), (133, 1933312), (152, 1691648), (224, 1147904), (236, 1089536), (256, 1004416), (266, 966656), (304, 845824), (413, 622592), (448, 573952), (472, 544768), (512, 502208), (532, 483328), (608, 422912), (826, 311296), (896, 286976), (944, 272384), (1024, 251104), (1064, 241664), (1121, 229376), (1216, 211456), (1652, 155648), (1792, 143488), (1888, 136192), (2048, 125552), (2128, 120832), (2242, 114688), (2432, 105728), (3304, 77824), (3584, 71744), (3776, 68096), (4096, 62776), (4256, 60416), (4484, 57344), (4864, 52864), (6608, 38912), (7168, 35872), (7552, 34048), (7847, 32768), (8192, 31388), (8512, 30208), (8968, 28672), (9728, 26432), (13216, 19456), (14336, 17936), (15104, 17024), (15694, 16384)]