209939408

素因数分解:

$2^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{277}}^1$

素因数の和:460

約数の個数: 80

約数和(自身を含む): 478195584

約数和(自身を除く): 268256176

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 67, 101, 112, 134, 202, 268, 277, 404, 469, 536, 554, 707, 808, 938, 1072, 1108, 1414, 1616, 1876, 1939, 2216, 2828, 3752, 3878, 4432, 5656, 6767, 7504, 7756, 11312, 13534, 15512, 18559, 27068, 27977, 31024, 37118, 47369, 54136, 55954, 74236, 94738, 108272, 111908, 129913, 148472, 189476, 195839, 223816, 259826, 296944, 378952, 391678, 447632, 519652, 757904, 783356, 1039304, 1566712, 1874459, 2078608, 3133424, 3748918, 7497836, 13121213, 14995672, 26242426, 29991344, 52484852, 104969704, 209939408]

約数ペア:

[(1, 209939408), (2, 104969704), (4, 52484852), (7, 29991344), (8, 26242426), (14, 14995672), (16, 13121213), (28, 7497836), (56, 3748918), (67, 3133424), (101, 2078608), (112, 1874459), (134, 1566712), (202, 1039304), (268, 783356), (277, 757904), (404, 519652), (469, 447632), (536, 391678), (554, 378952), (707, 296944), (808, 259826), (938, 223816), (1072, 195839), (1108, 189476), (1414, 148472), (1616, 129913), (1876, 111908), (1939, 108272), (2216, 94738), (2828, 74236), (3752, 55954), (3878, 54136), (4432, 47369), (5656, 37118), (6767, 31024), (7504, 27977), (7756, 27068), (11312, 18559), (13534, 15512)]