20747328

素因数分解:

$2^6\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:424

約数の個数: 112

約数和(自身を含む): 64373760

約数和(自身を除く): 43626432

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 43, 48, 56, 64, 84, 86, 96, 112, 129, 168, 172, 192, 224, 258, 301, 336, 344, 359, 448, 516, 602, 672, 688, 718, 903, 1032, 1077, 1204, 1344, 1376, 1436, 1806, 2064, 2154, 2408, 2513, 2752, 2872, 3612, 4128, 4308, 4816, 5026, 5744, 7224, 7539, 8256, 8616, 9632, 10052, 11488, 14448, 15078, 15437, 17232, 19264, 20104, 22976, 28896, 30156, 30874, 34464, 40208, 46311, 57792, 60312, 61748, 68928, 80416, 92622, 108059, 120624, 123496, 160832, 185244, 216118, 241248, 246992, 324177, 370488, 432236, 482496, 493984, 648354, 740976, 864472, 987968, 1296708, 1481952, 1728944, 2593416, 2963904, 3457888, 5186832, 6915776, 10373664, 20747328]

約数ペア:

[(1, 20747328), (2, 10373664), (3, 6915776), (4, 5186832), (6, 3457888), (7, 2963904), (8, 2593416), (12, 1728944), (14, 1481952), (16, 1296708), (21, 987968), (24, 864472), (28, 740976), (32, 648354), (42, 493984), (43, 482496), (48, 432236), (56, 370488), (64, 324177), (84, 246992), (86, 241248), (96, 216118), (112, 185244), (129, 160832), (168, 123496), (172, 120624), (192, 108059), (224, 92622), (258, 80416), (301, 68928), (336, 61748), (344, 60312), (359, 57792), (448, 46311), (516, 40208), (602, 34464), (672, 30874), (688, 30156), (718, 28896), (903, 22976), (1032, 20104), (1077, 19264), (1204, 17232), (1344, 15437), (1376, 15078), (1436, 14448), (1806, 11488), (2064, 10052), (2154, 9632), (2408, 8616), (2513, 8256), (2752, 7539), (2872, 7224), (3612, 5744), (4128, 5026), (4308, 4816)]