278313273

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:196

約数の個数: 128

約数和(自身を含む): 541900800

約数和(自身を除く): 263587527

約数列:

[1, 3, 7, 9, 17, 19, 21, 27, 47, 51, 57, 63, 97, 119, 133, 141, 153, 171, 189, 291, 323, 329, 357, 399, 423, 459, 513, 679, 799, 873, 893, 969, 987, 1071, 1197, 1269, 1649, 1843, 2037, 2261, 2397, 2619, 2679, 2907, 2961, 3213, 3591, 4559, 4947, 5529, 5593, 6111, 6251, 6783, 7191, 8037, 8721, 8883, 11543, 12901, 13677, 14841, 15181, 16587, 16779, 18333, 18753, 20349, 21573, 24111, 31331, 31913, 34629, 38703, 41031, 44523, 45543, 49761, 50337, 56259, 61047, 77503, 86621, 93993, 95739, 103887, 106267, 116109, 123093, 136629, 151011, 168777, 219317, 232509, 259863, 281979, 287217, 311661, 318801, 348327, 409887, 542521, 606347, 657951, 697527, 779589, 845937, 861651, 956403, 1472557, 1627563, 1819041, 1973853, 2092581, 2338767, 2869209, 4417671, 4882689, 5457123, 5921559, 10307899, 13253013, 14648067, 16371369, 30923697, 39759039, 92771091, 278313273]

約数ペア:

[(1, 278313273), (3, 92771091), (7, 39759039), (9, 30923697), (17, 16371369), (19, 14648067), (21, 13253013), (27, 10307899), (47, 5921559), (51, 5457123), (57, 4882689), (63, 4417671), (97, 2869209), (119, 2338767), (133, 2092581), (141, 1973853), (153, 1819041), (171, 1627563), (189, 1472557), (291, 956403), (323, 861651), (329, 845937), (357, 779589), (399, 697527), (423, 657951), (459, 606347), (513, 542521), (679, 409887), (799, 348327), (873, 318801), (893, 311661), (969, 287217), (987, 281979), (1071, 259863), (1197, 232509), (1269, 219317), (1649, 168777), (1843, 151011), (2037, 136629), (2261, 123093), (2397, 116109), (2619, 106267), (2679, 103887), (2907, 95739), (2961, 93993), (3213, 86621), (3591, 77503), (4559, 61047), (4947, 56259), (5529, 50337), (5593, 49761), (6111, 45543), (6251, 44523), (6783, 41031), (7191, 38703), (8037, 34629), (8721, 31913), (8883, 31331), (11543, 24111), (12901, 21573), (13677, 20349), (14841, 18753), (15181, 18333), (16587, 16779)]