636443392

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{199}}^1$

素因数の和:290

約数の個数: 108

約数和(自身を含む): 1420784400

約数和(自身を除く): 784341008

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 199, 208, 248, 256, 398, 403, 416, 496, 796, 806, 832, 961, 992, 1592, 1612, 1664, 1922, 1984, 2587, 3184, 3224, 3328, 3844, 3968, 5174, 6169, 6368, 6448, 7688, 7936, 10348, 12338, 12493, 12736, 12896, 15376, 20696, 24676, 24986, 25472, 25792, 30752, 41392, 49352, 49972, 50944, 51584, 61504, 80197, 82784, 98704, 99944, 103168, 123008, 160394, 165568, 191239, 197408, 199888, 246016, 320788, 331136, 382478, 394816, 399776, 641576, 662272, 764956, 789632, 799552, 1283152, 1529912, 1579264, 1599104, 2486107, 2566304, 3059824, 3198208, 4972214, 5132608, 6119648, 9944428, 10265216, 12239296, 19888856, 20530432, 24478592, 39777712, 48957184, 79555424, 159110848, 318221696, 636443392]

約数ペア:

[(1, 636443392), (2, 318221696), (4, 159110848), (8, 79555424), (13, 48957184), (16, 39777712), (26, 24478592), (31, 20530432), (32, 19888856), (52, 12239296), (62, 10265216), (64, 9944428), (104, 6119648), (124, 5132608), (128, 4972214), (199, 3198208), (208, 3059824), (248, 2566304), (256, 2486107), (398, 1599104), (403, 1579264), (416, 1529912), (496, 1283152), (796, 799552), (806, 789632), (832, 764956), (961, 662272), (992, 641576), (1592, 399776), (1612, 394816), (1664, 382478), (1922, 331136), (1984, 320788), (2587, 246016), (3184, 199888), (3224, 197408), (3328, 191239), (3844, 165568), (3968, 160394), (5174, 123008), (6169, 103168), (6368, 99944), (6448, 98704), (7688, 82784), (7936, 80197), (10348, 61504), (12338, 51584), (12493, 50944), (12736, 49972), (12896, 49352), (15376, 41392), (20696, 30752), (24676, 25792), (24986, 25472)]