278141114

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:148

約数の個数: 72

約数和(自身を含む): 494068608

約数和(自身を除く): 215927494

約数列:

[1, 2, 17, 19, 31, 34, 38, 43, 62, 86, 289, 323, 361, 527, 578, 589, 646, 722, 731, 817, 1054, 1178, 1333, 1462, 1634, 2666, 5491, 6137, 8959, 10013, 10982, 11191, 12274, 12427, 13889, 15523, 17918, 20026, 22382, 22661, 24854, 25327, 27778, 31046, 45322, 50654, 104329, 170221, 190247, 208658, 236113, 263891, 340442, 380494, 385237, 430559, 472226, 481213, 527782, 770474, 861118, 962426, 3234199, 4486147, 6468398, 7319503, 8180621, 8972294, 14639006, 16361242, 139070557, 278141114]

約数ペア:

[(1, 278141114), (2, 139070557), (17, 16361242), (19, 14639006), (31, 8972294), (34, 8180621), (38, 7319503), (43, 6468398), (62, 4486147), (86, 3234199), (289, 962426), (323, 861118), (361, 770474), (527, 527782), (578, 481213), (589, 472226), (646, 430559), (722, 385237), (731, 380494), (817, 340442), (1054, 263891), (1178, 236113), (1333, 208658), (1462, 190247), (1634, 170221), (2666, 104329), (5491, 50654), (6137, 45322), (8959, 31046), (10013, 27778), (10982, 25327), (11191, 24854), (12274, 22661), (12427, 22382), (13889, 20026), (15523, 17918)]