490286979

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:258

約数の個数: 128

約数和(自身を含む): 951336960

約数和(自身を除く): 461049981

約数列:

[1, 3, 7, 9, 13, 21, 27, 31, 39, 41, 63, 91, 93, 117, 123, 157, 189, 217, 273, 279, 287, 351, 369, 403, 471, 533, 651, 819, 837, 861, 1099, 1107, 1209, 1271, 1413, 1599, 1953, 2041, 2457, 2583, 2821, 3297, 3627, 3731, 3813, 4239, 4797, 4867, 5859, 6123, 6437, 7749, 8463, 8897, 9891, 10881, 11193, 11439, 14287, 14391, 14601, 16523, 18369, 19311, 25389, 26691, 29673, 33579, 34069, 34317, 42861, 43803, 45059, 49569, 55107, 57933, 63271, 76167, 80073, 83681, 100737, 102207, 115661, 128583, 131409, 135177, 148707, 173799, 189813, 199547, 240219, 251043, 306621, 346983, 385749, 405531, 442897, 446121, 569439, 585767, 598641, 753129, 919863, 1040949, 1216593, 1328691, 1396829, 1708317, 1757301, 1795923, 2259387, 2594111, 3122847, 3986073, 4190487, 5271903, 5387769, 7782333, 11958219, 12571461, 15815709, 18158777, 23346999, 37714383, 54476331, 70040997, 163428993, 490286979]

約数ペア:

[(1, 490286979), (3, 163428993), (7, 70040997), (9, 54476331), (13, 37714383), (21, 23346999), (27, 18158777), (31, 15815709), (39, 12571461), (41, 11958219), (63, 7782333), (91, 5387769), (93, 5271903), (117, 4190487), (123, 3986073), (157, 3122847), (189, 2594111), (217, 2259387), (273, 1795923), (279, 1757301), (287, 1708317), (351, 1396829), (369, 1328691), (403, 1216593), (471, 1040949), (533, 919863), (651, 753129), (819, 598641), (837, 585767), (861, 569439), (1099, 446121), (1107, 442897), (1209, 405531), (1271, 385749), (1413, 346983), (1599, 306621), (1953, 251043), (2041, 240219), (2457, 199547), (2583, 189813), (2821, 173799), (3297, 148707), (3627, 135177), (3731, 131409), (3813, 128583), (4239, 115661), (4797, 102207), (4867, 100737), (5859, 83681), (6123, 80073), (6437, 76167), (7749, 63271), (8463, 57933), (8897, 55107), (9891, 49569), (10881, 45059), (11193, 43803), (11439, 42861), (14287, 34317), (14391, 34069), (14601, 33579), (16523, 29673), (18369, 26691), (19311, 25389)]