639171918

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{443}}^1$

素因数の和:819

約数の個数: 128

約数和(自身を含む): 1779978240

約数和(自身を除く): 1140806322

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 27, 33, 42, 54, 63, 66, 77, 99, 126, 154, 189, 198, 231, 297, 347, 378, 443, 462, 594, 693, 694, 886, 1041, 1329, 1386, 2079, 2082, 2429, 2658, 3101, 3123, 3817, 3987, 4158, 4858, 4873, 6202, 6246, 7287, 7634, 7974, 9303, 9369, 9746, 11451, 11961, 14574, 14619, 18606, 18738, 21861, 22902, 23922, 26719, 27909, 29238, 34111, 34353, 43722, 43857, 53438, 55818, 65583, 68222, 68706, 80157, 83727, 87714, 102333, 103059, 131166, 131571, 153721, 160314, 167454, 204666, 206118, 240471, 263142, 306999, 307442, 461163, 480942, 613998, 721413, 920997, 922326, 1076047, 1383489, 1442826, 1690931, 1841994, 2152094, 2766978, 3228141, 3381862, 4150467, 5072793, 6456282, 8300934, 9684423, 10145586, 11836517, 15218379, 19368846, 23673034, 29053269, 30436758, 35509551, 45655137, 58106538, 71019102, 91310274, 106528653, 213057306, 319585959, 639171918]

約数ペア:

[(1, 639171918), (2, 319585959), (3, 213057306), (6, 106528653), (7, 91310274), (9, 71019102), (11, 58106538), (14, 45655137), (18, 35509551), (21, 30436758), (22, 29053269), (27, 23673034), (33, 19368846), (42, 15218379), (54, 11836517), (63, 10145586), (66, 9684423), (77, 8300934), (99, 6456282), (126, 5072793), (154, 4150467), (189, 3381862), (198, 3228141), (231, 2766978), (297, 2152094), (347, 1841994), (378, 1690931), (443, 1442826), (462, 1383489), (594, 1076047), (693, 922326), (694, 920997), (886, 721413), (1041, 613998), (1329, 480942), (1386, 461163), (2079, 307442), (2082, 306999), (2429, 263142), (2658, 240471), (3101, 206118), (3123, 204666), (3817, 167454), (3987, 160314), (4158, 153721), (4858, 131571), (4873, 131166), (6202, 103059), (6246, 102333), (7287, 87714), (7634, 83727), (7974, 80157), (9303, 68706), (9369, 68222), (9746, 65583), (11451, 55818), (11961, 53438), (14574, 43857), (14619, 43722), (18606, 34353), (18738, 34111), (21861, 29238), (22902, 27909), (23922, 26719)]