20603968

素因数分解:

$2^6\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:180

約数の個数: 112

約数和(自身を含む): 52815744

約数和(自身を除く): 32211776

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 37, 44, 56, 64, 74, 77, 88, 112, 113, 148, 154, 176, 224, 226, 259, 296, 308, 352, 407, 448, 452, 518, 592, 616, 704, 791, 814, 904, 1036, 1184, 1232, 1243, 1582, 1628, 1808, 2072, 2368, 2464, 2486, 2849, 3164, 3256, 3616, 4144, 4181, 4928, 4972, 5698, 6328, 6512, 7232, 8288, 8362, 8701, 9944, 11396, 12656, 13024, 16576, 16724, 17402, 19888, 22792, 25312, 26048, 29267, 33448, 34804, 39776, 45584, 45991, 50624, 58534, 66896, 69608, 79552, 91168, 91982, 117068, 133792, 139216, 182336, 183964, 234136, 267584, 278432, 321937, 367928, 468272, 556864, 643874, 735856, 936544, 1287748, 1471712, 1873088, 2575496, 2943424, 5150992, 10301984, 20603968]

約数ペア:

[(1, 20603968), (2, 10301984), (4, 5150992), (7, 2943424), (8, 2575496), (11, 1873088), (14, 1471712), (16, 1287748), (22, 936544), (28, 735856), (32, 643874), (37, 556864), (44, 468272), (56, 367928), (64, 321937), (74, 278432), (77, 267584), (88, 234136), (112, 183964), (113, 182336), (148, 139216), (154, 133792), (176, 117068), (224, 91982), (226, 91168), (259, 79552), (296, 69608), (308, 66896), (352, 58534), (407, 50624), (448, 45991), (452, 45584), (518, 39776), (592, 34804), (616, 33448), (704, 29267), (791, 26048), (814, 25312), (904, 22792), (1036, 19888), (1184, 17402), (1232, 16724), (1243, 16576), (1582, 13024), (1628, 12656), (1808, 11396), (2072, 9944), (2368, 8701), (2464, 8362), (2486, 8288), (2849, 7232), (3164, 6512), (3256, 6328), (3616, 5698), (4144, 4972), (4181, 4928)]