261496512

素因数分解:

$2^6\times 3^4\times {\mathrm{73}}^1\times {\mathrm{691}}^1$

素因数の和:788

約数の個数: 140

約数和(自身を含む): 786913336

約数和(自身を除く): 525416824

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 73, 81, 96, 108, 144, 146, 162, 192, 216, 219, 288, 292, 324, 432, 438, 576, 584, 648, 657, 691, 864, 876, 1168, 1296, 1314, 1382, 1728, 1752, 1971, 2073, 2336, 2592, 2628, 2764, 3504, 3942, 4146, 4672, 5184, 5256, 5528, 5913, 6219, 7008, 7884, 8292, 10512, 11056, 11826, 12438, 14016, 15768, 16584, 18657, 21024, 22112, 23652, 24876, 31536, 33168, 37314, 42048, 44224, 47304, 49752, 50443, 55971, 63072, 66336, 74628, 94608, 99504, 100886, 111942, 126144, 132672, 149256, 151329, 189216, 199008, 201772, 223884, 298512, 302658, 378432, 398016, 403544, 447768, 453987, 597024, 605316, 807088, 895536, 907974, 1194048, 1210632, 1361961, 1614176, 1791072, 1815948, 2421264, 2723922, 3228352, 3582144, 3631896, 4085883, 4842528, 5447844, 7263792, 8171766, 9685056, 10895688, 14527584, 16343532, 21791376, 29055168, 32687064, 43582752, 65374128, 87165504, 130748256, 261496512]

約数ペア:

[(1, 261496512), (2, 130748256), (3, 87165504), (4, 65374128), (6, 43582752), (8, 32687064), (9, 29055168), (12, 21791376), (16, 16343532), (18, 14527584), (24, 10895688), (27, 9685056), (32, 8171766), (36, 7263792), (48, 5447844), (54, 4842528), (64, 4085883), (72, 3631896), (73, 3582144), (81, 3228352), (96, 2723922), (108, 2421264), (144, 1815948), (146, 1791072), (162, 1614176), (192, 1361961), (216, 1210632), (219, 1194048), (288, 907974), (292, 895536), (324, 807088), (432, 605316), (438, 597024), (576, 453987), (584, 447768), (648, 403544), (657, 398016), (691, 378432), (864, 302658), (876, 298512), (1168, 223884), (1296, 201772), (1314, 199008), (1382, 189216), (1728, 151329), (1752, 149256), (1971, 132672), (2073, 126144), (2336, 111942), (2592, 100886), (2628, 99504), (2764, 94608), (3504, 74628), (3942, 66336), (4146, 63072), (4672, 55971), (5184, 50443), (5256, 49752), (5528, 47304), (5913, 44224), (6219, 42048), (7008, 37314), (7884, 33168), (8292, 31536), (10512, 24876), (11056, 23652), (11826, 22112), (12438, 21024), (14016, 18657), (15768, 16584)]