20097856

素因数分解:

$2^6\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:231

約数の個数: 56

約数和(自身を含む): 41798240

約数和(自身を除く): 21700384

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 67, 86, 109, 134, 172, 218, 268, 344, 436, 536, 688, 872, 1072, 1376, 1744, 2144, 2752, 2881, 3488, 4288, 4687, 5762, 6976, 7303, 9374, 11524, 14606, 18748, 23048, 29212, 37496, 46096, 58424, 74992, 92192, 116848, 149984, 184384, 233696, 299968, 314029, 467392, 628058, 1256116, 2512232, 5024464, 10048928, 20097856]

約数ペア:

[(1, 20097856), (2, 10048928), (4, 5024464), (8, 2512232), (16, 1256116), (32, 628058), (43, 467392), (64, 314029), (67, 299968), (86, 233696), (109, 184384), (134, 149984), (172, 116848), (218, 92192), (268, 74992), (344, 58424), (436, 46096), (536, 37496), (688, 29212), (872, 23048), (1072, 18748), (1376, 14606), (1744, 11524), (2144, 9374), (2752, 7303), (2881, 6976), (3488, 5762), (4288, 4687)]