281831480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1$

素因数の和:349

約数の個数: 128

約数和(自身を含む): 748500480

約数和(自身を除く): 466669000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 83, 134, 140, 166, 181, 268, 280, 332, 335, 362, 415, 469, 536, 581, 664, 670, 724, 830, 905, 938, 1162, 1267, 1340, 1448, 1660, 1810, 1876, 2324, 2345, 2534, 2680, 2905, 3320, 3620, 3752, 4648, 4690, 5068, 5561, 5810, 6335, 7240, 9380, 10136, 11122, 11620, 12127, 12670, 15023, 18760, 22244, 23240, 24254, 25340, 27805, 30046, 38927, 44488, 48508, 50680, 55610, 60092, 60635, 75115, 77854, 84889, 97016, 105161, 111220, 120184, 121270, 150230, 155708, 169778, 194635, 210322, 222440, 242540, 300460, 311416, 339556, 389270, 420644, 424445, 485080, 525805, 600920, 679112, 778540, 841288, 848890, 1006541, 1051610, 1557080, 1697780, 2013082, 2103220, 3395560, 4026164, 4206440, 5032705, 7045787, 8052328, 10065410, 14091574, 20130820, 28183148, 35228935, 40261640, 56366296, 70457870, 140915740, 281831480]

約数ペア:

[(1, 281831480), (2, 140915740), (4, 70457870), (5, 56366296), (7, 40261640), (8, 35228935), (10, 28183148), (14, 20130820), (20, 14091574), (28, 10065410), (35, 8052328), (40, 7045787), (56, 5032705), (67, 4206440), (70, 4026164), (83, 3395560), (134, 2103220), (140, 2013082), (166, 1697780), (181, 1557080), (268, 1051610), (280, 1006541), (332, 848890), (335, 841288), (362, 778540), (415, 679112), (469, 600920), (536, 525805), (581, 485080), (664, 424445), (670, 420644), (724, 389270), (830, 339556), (905, 311416), (938, 300460), (1162, 242540), (1267, 222440), (1340, 210322), (1448, 194635), (1660, 169778), (1810, 155708), (1876, 150230), (2324, 121270), (2345, 120184), (2534, 111220), (2680, 105161), (2905, 97016), (3320, 84889), (3620, 77854), (3752, 75115), (4648, 60635), (4690, 60092), (5068, 55610), (5561, 50680), (5810, 48508), (6335, 44488), (7240, 38927), (9380, 30046), (10136, 27805), (11122, 25340), (11620, 24254), (12127, 23240), (12670, 22244), (15023, 18760)]