278337136

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1439}}^1$

素因数の和:1622

約数の個数: 80

約数和(自身を含む): 677099520

約数和(自身を除く): 398762384

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 157, 176, 308, 314, 616, 628, 1099, 1232, 1256, 1439, 1727, 2198, 2512, 2878, 3454, 4396, 5756, 6908, 8792, 10073, 11512, 12089, 13816, 15829, 17584, 20146, 23024, 24178, 27632, 31658, 40292, 48356, 63316, 80584, 96712, 110803, 126632, 161168, 193424, 221606, 225923, 253264, 443212, 451846, 886424, 903692, 1581461, 1772848, 1807384, 2485153, 3162922, 3614768, 4970306, 6325844, 9940612, 12651688, 17396071, 19881224, 25303376, 34792142, 39762448, 69584284, 139168568, 278337136]

約数ペア:

[(1, 278337136), (2, 139168568), (4, 69584284), (7, 39762448), (8, 34792142), (11, 25303376), (14, 19881224), (16, 17396071), (22, 12651688), (28, 9940612), (44, 6325844), (56, 4970306), (77, 3614768), (88, 3162922), (112, 2485153), (154, 1807384), (157, 1772848), (176, 1581461), (308, 903692), (314, 886424), (616, 451846), (628, 443212), (1099, 253264), (1232, 225923), (1256, 221606), (1439, 193424), (1727, 161168), (2198, 126632), (2512, 110803), (2878, 96712), (3454, 80584), (4396, 63316), (5756, 48356), (6908, 40292), (8792, 31658), (10073, 27632), (11512, 24178), (12089, 23024), (13816, 20146), (15829, 17584)]