257914368

素因数分解:

$2^9\times 3^6\times {\mathrm{691}}^1$

素因数の和:727

約数の個数: 140

約数和(自身を含む): 773752188

約数和(自身を除く): 515837820

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 81, 96, 108, 128, 144, 162, 192, 216, 243, 256, 288, 324, 384, 432, 486, 512, 576, 648, 691, 729, 768, 864, 972, 1152, 1296, 1382, 1458, 1536, 1728, 1944, 2073, 2304, 2592, 2764, 2916, 3456, 3888, 4146, 4608, 5184, 5528, 5832, 6219, 6912, 7776, 8292, 10368, 11056, 11664, 12438, 13824, 15552, 16584, 18657, 20736, 22112, 23328, 24876, 31104, 33168, 37314, 41472, 44224, 46656, 49752, 55971, 62208, 66336, 74628, 88448, 93312, 99504, 111942, 124416, 132672, 149256, 167913, 176896, 186624, 199008, 223884, 265344, 298512, 335826, 353792, 373248, 398016, 447768, 503739, 530688, 597024, 671652, 796032, 895536, 1007478, 1061376, 1194048, 1343304, 1592064, 1791072, 2014956, 2388096, 2686608, 3184128, 3582144, 4029912, 4776192, 5373216, 7164288, 8059824, 9552384, 10746432, 14328576, 16119648, 21492864, 28657152, 32239296, 42985728, 64478592, 85971456, 128957184, 257914368]

約数ペア:

[(1, 257914368), (2, 128957184), (3, 85971456), (4, 64478592), (6, 42985728), (8, 32239296), (9, 28657152), (12, 21492864), (16, 16119648), (18, 14328576), (24, 10746432), (27, 9552384), (32, 8059824), (36, 7164288), (48, 5373216), (54, 4776192), (64, 4029912), (72, 3582144), (81, 3184128), (96, 2686608), (108, 2388096), (128, 2014956), (144, 1791072), (162, 1592064), (192, 1343304), (216, 1194048), (243, 1061376), (256, 1007478), (288, 895536), (324, 796032), (384, 671652), (432, 597024), (486, 530688), (512, 503739), (576, 447768), (648, 398016), (691, 373248), (729, 353792), (768, 335826), (864, 298512), (972, 265344), (1152, 223884), (1296, 199008), (1382, 186624), (1458, 176896), (1536, 167913), (1728, 149256), (1944, 132672), (2073, 124416), (2304, 111942), (2592, 99504), (2764, 93312), (2916, 88448), (3456, 74628), (3888, 66336), (4146, 62208), (4608, 55971), (5184, 49752), (5528, 46656), (5832, 44224), (6219, 41472), (6912, 37314), (7776, 33168), (8292, 31104), (10368, 24876), (11056, 23328), (11664, 22112), (12438, 20736), (13824, 18657), (15552, 16584)]