20788768

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1$

素因数の和:111

約数の個数: 144

約数和(自身を含む): 56306880

約数和(自身を除く): 35518112

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 32, 44, 52, 56, 59, 77, 88, 91, 104, 112, 118, 121, 143, 154, 176, 182, 208, 224, 236, 242, 286, 308, 352, 364, 413, 416, 472, 484, 572, 616, 649, 728, 767, 826, 847, 944, 968, 1001, 1144, 1232, 1298, 1456, 1534, 1573, 1652, 1694, 1888, 1936, 2002, 2288, 2464, 2596, 2912, 3068, 3146, 3304, 3388, 3872, 4004, 4543, 4576, 5192, 5369, 6136, 6292, 6608, 6776, 7139, 8008, 8437, 9086, 10384, 10738, 11011, 12272, 12584, 13216, 13552, 14278, 16016, 16874, 18172, 20768, 21476, 22022, 24544, 25168, 27104, 28556, 32032, 33748, 36344, 42952, 44044, 49973, 50336, 57112, 59059, 67496, 72688, 85904, 88088, 92807, 99946, 114224, 118118, 134992, 145376, 171808, 176176, 185614, 199892, 228448, 236236, 269984, 352352, 371228, 399784, 472472, 649649, 742456, 799568, 944944, 1299298, 1484912, 1599136, 1889888, 2598596, 2969824, 5197192, 10394384, 20788768]

約数ペア:

[(1, 20788768), (2, 10394384), (4, 5197192), (7, 2969824), (8, 2598596), (11, 1889888), (13, 1599136), (14, 1484912), (16, 1299298), (22, 944944), (26, 799568), (28, 742456), (32, 649649), (44, 472472), (52, 399784), (56, 371228), (59, 352352), (77, 269984), (88, 236236), (91, 228448), (104, 199892), (112, 185614), (118, 176176), (121, 171808), (143, 145376), (154, 134992), (176, 118118), (182, 114224), (208, 99946), (224, 92807), (236, 88088), (242, 85904), (286, 72688), (308, 67496), (352, 59059), (364, 57112), (413, 50336), (416, 49973), (472, 44044), (484, 42952), (572, 36344), (616, 33748), (649, 32032), (728, 28556), (767, 27104), (826, 25168), (847, 24544), (944, 22022), (968, 21476), (1001, 20768), (1144, 18172), (1232, 16874), (1298, 16016), (1456, 14278), (1534, 13552), (1573, 13216), (1652, 12584), (1694, 12272), (1888, 11011), (1936, 10738), (2002, 10384), (2288, 9086), (2464, 8437), (2596, 8008), (2912, 7139), (3068, 6776), (3146, 6608), (3304, 6292), (3388, 6136), (3872, 5369), (4004, 5192), (4543, 4576)]