257488728

素因数分解:

$2^3\times 3^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{1009}}^1$

素因数の和:1070

約数の個数: 128

約数和(自身を含む): 775680000

約数和(自身を除く): 518191272

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 42, 49, 56, 62, 84, 93, 98, 124, 147, 168, 186, 196, 217, 248, 294, 343, 372, 392, 434, 588, 651, 686, 744, 868, 1009, 1029, 1176, 1302, 1372, 1519, 1736, 2018, 2058, 2604, 2744, 3027, 3038, 4036, 4116, 4557, 5208, 6054, 6076, 7063, 8072, 8232, 9114, 10633, 12108, 12152, 14126, 18228, 21189, 21266, 24216, 28252, 31279, 31899, 36456, 42378, 42532, 49441, 56504, 62558, 63798, 84756, 85064, 93837, 98882, 125116, 127596, 148323, 169512, 187674, 197764, 218953, 250232, 255192, 296646, 346087, 375348, 395528, 437906, 593292, 656859, 692174, 750696, 875812, 1038261, 1186584, 1313718, 1384348, 1532671, 1751624, 2076522, 2627436, 2768696, 3065342, 4153044, 4598013, 5254872, 6130684, 8306088, 9196026, 10728697, 12261368, 18392052, 21457394, 32186091, 36784104, 42914788, 64372182, 85829576, 128744364, 257488728]

約数ペア:

[(1, 257488728), (2, 128744364), (3, 85829576), (4, 64372182), (6, 42914788), (7, 36784104), (8, 32186091), (12, 21457394), (14, 18392052), (21, 12261368), (24, 10728697), (28, 9196026), (31, 8306088), (42, 6130684), (49, 5254872), (56, 4598013), (62, 4153044), (84, 3065342), (93, 2768696), (98, 2627436), (124, 2076522), (147, 1751624), (168, 1532671), (186, 1384348), (196, 1313718), (217, 1186584), (248, 1038261), (294, 875812), (343, 750696), (372, 692174), (392, 656859), (434, 593292), (588, 437906), (651, 395528), (686, 375348), (744, 346087), (868, 296646), (1009, 255192), (1029, 250232), (1176, 218953), (1302, 197764), (1372, 187674), (1519, 169512), (1736, 148323), (2018, 127596), (2058, 125116), (2604, 98882), (2744, 93837), (3027, 85064), (3038, 84756), (4036, 63798), (4116, 62558), (4557, 56504), (5208, 49441), (6054, 42532), (6076, 42378), (7063, 36456), (8072, 31899), (8232, 31279), (9114, 28252), (10633, 24216), (12108, 21266), (12152, 21189), (14126, 18228)]