260821288

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:507

約数の個数: 128

約数和(自身を含む): 646571520

約数和(自身を除く): 385750232

約数列:

[1, 2, 4, 7, 8, 13, 14, 23, 26, 28, 37, 46, 52, 56, 74, 91, 92, 104, 148, 161, 182, 184, 259, 296, 299, 322, 364, 421, 481, 518, 598, 644, 728, 842, 851, 962, 1036, 1196, 1288, 1684, 1702, 1924, 2072, 2093, 2392, 2947, 3367, 3368, 3404, 3848, 4186, 5473, 5894, 5957, 6734, 6808, 8372, 9683, 10946, 11063, 11788, 11914, 13468, 15577, 16744, 19366, 21892, 22126, 23576, 23828, 26936, 31154, 38311, 38732, 43784, 44252, 47656, 62308, 67781, 76622, 77441, 77464, 88504, 109039, 124616, 125879, 135562, 153244, 154882, 202501, 218078, 251758, 271124, 306488, 309764, 358271, 405002, 436156, 503516, 542248, 619528, 716542, 810004, 872312, 881153, 1007032, 1417507, 1433084, 1620008, 1762306, 2507897, 2835014, 2866168, 3524612, 4657523, 5015794, 5670028, 7049224, 9315046, 10031588, 11340056, 18630092, 20063176, 32602661, 37260184, 65205322, 130410644, 260821288]

約数ペア:

[(1, 260821288), (2, 130410644), (4, 65205322), (7, 37260184), (8, 32602661), (13, 20063176), (14, 18630092), (23, 11340056), (26, 10031588), (28, 9315046), (37, 7049224), (46, 5670028), (52, 5015794), (56, 4657523), (74, 3524612), (91, 2866168), (92, 2835014), (104, 2507897), (148, 1762306), (161, 1620008), (182, 1433084), (184, 1417507), (259, 1007032), (296, 881153), (299, 872312), (322, 810004), (364, 716542), (421, 619528), (481, 542248), (518, 503516), (598, 436156), (644, 405002), (728, 358271), (842, 309764), (851, 306488), (962, 271124), (1036, 251758), (1196, 218078), (1288, 202501), (1684, 154882), (1702, 153244), (1924, 135562), (2072, 125879), (2093, 124616), (2392, 109039), (2947, 88504), (3367, 77464), (3368, 77441), (3404, 76622), (3848, 67781), (4186, 62308), (5473, 47656), (5894, 44252), (5957, 43784), (6734, 38732), (6808, 38311), (8372, 31154), (9683, 26936), (10946, 23828), (11063, 23576), (11788, 22126), (11914, 21892), (13468, 19366), (15577, 16744)]