20388576

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2$

素因数の和:105

約数の個数: 144

約数和(自身を含む): 63059472

約数和(自身を除く): 42670896

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 24, 26, 31, 32, 34, 39, 48, 51, 52, 62, 68, 78, 93, 96, 102, 104, 124, 136, 156, 186, 204, 208, 221, 248, 272, 312, 372, 403, 408, 416, 442, 496, 527, 544, 624, 663, 744, 806, 816, 884, 961, 992, 1054, 1209, 1248, 1326, 1488, 1581, 1612, 1632, 1768, 1922, 2108, 2418, 2652, 2883, 2976, 3162, 3224, 3536, 3844, 4216, 4836, 5304, 5766, 6324, 6448, 6851, 7072, 7688, 8432, 9672, 10608, 11532, 12493, 12648, 12896, 13702, 15376, 16337, 16864, 19344, 20553, 21216, 23064, 24986, 25296, 27404, 30752, 32674, 37479, 38688, 41106, 46128, 49011, 49972, 50592, 54808, 65348, 74958, 82212, 92256, 98022, 99944, 109616, 130696, 149916, 164424, 196044, 199888, 212381, 219232, 261392, 299832, 328848, 392088, 399776, 424762, 522784, 599664, 637143, 657696, 784176, 849524, 1199328, 1274286, 1568352, 1699048, 2548572, 3398096, 5097144, 6796192, 10194288, 20388576]

約数ペア:

[(1, 20388576), (2, 10194288), (3, 6796192), (4, 5097144), (6, 3398096), (8, 2548572), (12, 1699048), (13, 1568352), (16, 1274286), (17, 1199328), (24, 849524), (26, 784176), (31, 657696), (32, 637143), (34, 599664), (39, 522784), (48, 424762), (51, 399776), (52, 392088), (62, 328848), (68, 299832), (78, 261392), (93, 219232), (96, 212381), (102, 199888), (104, 196044), (124, 164424), (136, 149916), (156, 130696), (186, 109616), (204, 99944), (208, 98022), (221, 92256), (248, 82212), (272, 74958), (312, 65348), (372, 54808), (403, 50592), (408, 49972), (416, 49011), (442, 46128), (496, 41106), (527, 38688), (544, 37479), (624, 32674), (663, 30752), (744, 27404), (806, 25296), (816, 24986), (884, 23064), (961, 21216), (992, 20553), (1054, 19344), (1209, 16864), (1248, 16337), (1326, 15376), (1488, 13702), (1581, 12896), (1612, 12648), (1632, 12493), (1768, 11532), (1922, 10608), (2108, 9672), (2418, 8432), (2652, 7688), (2883, 7072), (2976, 6851), (3162, 6448), (3224, 6324), (3536, 5766), (3844, 5304), (4216, 4836)]