278837208

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{499}}^1$

素因数の和:726

約数の個数: 128

約数和(自身を含む): 840000000

約数和(自身を除く): 561162792

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 104, 108, 117, 156, 199, 216, 234, 312, 351, 398, 468, 499, 597, 702, 796, 936, 998, 1194, 1404, 1497, 1592, 1791, 1996, 2388, 2587, 2808, 2994, 3582, 3992, 4491, 4776, 5174, 5373, 5988, 6487, 7164, 7761, 8982, 10348, 10746, 11976, 12974, 13473, 14328, 15522, 17964, 19461, 20696, 21492, 23283, 25948, 26946, 31044, 35928, 38922, 42984, 46566, 51896, 53892, 58383, 62088, 69849, 77844, 93132, 99301, 107784, 116766, 139698, 155688, 175149, 186264, 198602, 233532, 279396, 297903, 350298, 397204, 467064, 558792, 595806, 700596, 794408, 893709, 1191612, 1290913, 1401192, 1787418, 2383224, 2581826, 2681127, 3574836, 3872739, 5163652, 5362254, 7149672, 7745478, 10327304, 10724508, 11618217, 15490956, 21449016, 23236434, 30981912, 34854651, 46472868, 69709302, 92945736, 139418604, 278837208]

約数ペア:

[(1, 278837208), (2, 139418604), (3, 92945736), (4, 69709302), (6, 46472868), (8, 34854651), (9, 30981912), (12, 23236434), (13, 21449016), (18, 15490956), (24, 11618217), (26, 10724508), (27, 10327304), (36, 7745478), (39, 7149672), (52, 5362254), (54, 5163652), (72, 3872739), (78, 3574836), (104, 2681127), (108, 2581826), (117, 2383224), (156, 1787418), (199, 1401192), (216, 1290913), (234, 1191612), (312, 893709), (351, 794408), (398, 700596), (468, 595806), (499, 558792), (597, 467064), (702, 397204), (796, 350298), (936, 297903), (998, 279396), (1194, 233532), (1404, 198602), (1497, 186264), (1592, 175149), (1791, 155688), (1996, 139698), (2388, 116766), (2587, 107784), (2808, 99301), (2994, 93132), (3582, 77844), (3992, 69849), (4491, 62088), (4776, 58383), (5174, 53892), (5373, 51896), (5988, 46566), (6487, 42984), (7164, 38922), (7761, 35928), (8982, 31044), (10348, 26946), (10746, 25948), (11976, 23283), (12974, 21492), (13473, 20696), (14328, 19461), (15522, 17964)]