20767968

素因数分解:

$2^5\times 3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^2$

素因数の和:118

約数の個数: 144

約数和(自身を含む): 66785040

約数和(自身を除く): 46017072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 43, 48, 52, 54, 72, 78, 86, 96, 104, 108, 117, 129, 144, 156, 172, 208, 216, 234, 258, 288, 312, 344, 351, 387, 416, 432, 468, 516, 559, 624, 688, 702, 774, 864, 936, 1032, 1118, 1161, 1248, 1376, 1404, 1548, 1677, 1849, 1872, 2064, 2236, 2322, 2808, 3096, 3354, 3698, 3744, 4128, 4472, 4644, 5031, 5547, 5616, 6192, 6708, 7396, 8944, 9288, 10062, 11094, 11232, 12384, 13416, 14792, 15093, 16641, 17888, 18576, 20124, 22188, 24037, 26832, 29584, 30186, 33282, 37152, 40248, 44376, 48074, 49923, 53664, 59168, 60372, 66564, 72111, 80496, 88752, 96148, 99846, 120744, 133128, 144222, 160992, 177504, 192296, 199692, 216333, 241488, 266256, 288444, 384592, 399384, 432666, 482976, 532512, 576888, 648999, 769184, 798768, 865332, 1153776, 1297998, 1597536, 1730664, 2307552, 2595996, 3461328, 5191992, 6922656, 10383984, 20767968]

約数ペア:

[(1, 20767968), (2, 10383984), (3, 6922656), (4, 5191992), (6, 3461328), (8, 2595996), (9, 2307552), (12, 1730664), (13, 1597536), (16, 1297998), (18, 1153776), (24, 865332), (26, 798768), (27, 769184), (32, 648999), (36, 576888), (39, 532512), (43, 482976), (48, 432666), (52, 399384), (54, 384592), (72, 288444), (78, 266256), (86, 241488), (96, 216333), (104, 199692), (108, 192296), (117, 177504), (129, 160992), (144, 144222), (156, 133128), (172, 120744), (208, 99846), (216, 96148), (234, 88752), (258, 80496), (288, 72111), (312, 66564), (344, 60372), (351, 59168), (387, 53664), (416, 49923), (432, 48074), (468, 44376), (516, 40248), (559, 37152), (624, 33282), (688, 30186), (702, 29584), (774, 26832), (864, 24037), (936, 22188), (1032, 20124), (1118, 18576), (1161, 17888), (1248, 16641), (1376, 15093), (1404, 14792), (1548, 13416), (1677, 12384), (1849, 11232), (1872, 11094), (2064, 10062), (2236, 9288), (2322, 8944), (2808, 7396), (3096, 6708), (3354, 6192), (3698, 5616), (3744, 5547), (4128, 5031), (4472, 4644)]