20678856

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:159

約数の個数: 128

約数和(自身を含む): 60739200

約数和(自身を除く): 40060344

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 29, 33, 37, 44, 58, 66, 73, 74, 87, 88, 111, 116, 132, 146, 148, 174, 219, 222, 232, 264, 292, 296, 319, 348, 407, 438, 444, 584, 638, 696, 803, 814, 876, 888, 957, 1073, 1221, 1276, 1606, 1628, 1752, 1914, 2117, 2146, 2409, 2442, 2552, 2701, 3212, 3219, 3256, 3828, 4234, 4292, 4818, 4884, 5402, 6351, 6424, 6438, 7656, 8103, 8468, 8584, 9636, 9768, 10804, 11803, 12702, 12876, 16206, 16936, 19272, 21608, 23287, 23606, 25404, 25752, 29711, 32412, 35409, 46574, 47212, 50808, 59422, 64824, 69861, 70818, 78329, 89133, 93148, 94424, 118844, 139722, 141636, 156658, 178266, 186296, 234987, 237688, 279444, 283272, 313316, 356532, 469974, 558888, 626632, 713064, 861619, 939948, 1723238, 1879896, 2584857, 3446476, 5169714, 6892952, 10339428, 20678856]

約数ペア:

[(1, 20678856), (2, 10339428), (3, 6892952), (4, 5169714), (6, 3446476), (8, 2584857), (11, 1879896), (12, 1723238), (22, 939948), (24, 861619), (29, 713064), (33, 626632), (37, 558888), (44, 469974), (58, 356532), (66, 313316), (73, 283272), (74, 279444), (87, 237688), (88, 234987), (111, 186296), (116, 178266), (132, 156658), (146, 141636), (148, 139722), (174, 118844), (219, 94424), (222, 93148), (232, 89133), (264, 78329), (292, 70818), (296, 69861), (319, 64824), (348, 59422), (407, 50808), (438, 47212), (444, 46574), (584, 35409), (638, 32412), (696, 29711), (803, 25752), (814, 25404), (876, 23606), (888, 23287), (957, 21608), (1073, 19272), (1221, 16936), (1276, 16206), (1606, 12876), (1628, 12702), (1752, 11803), (1914, 10804), (2117, 9768), (2146, 9636), (2409, 8584), (2442, 8468), (2552, 8103), (2701, 7656), (3212, 6438), (3219, 6424), (3256, 6351), (3828, 5402), (4234, 4884), (4292, 4818)]