20510656

素因数分解:

$2^6\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:341

約数の個数: 56

約数和(自身を含む): 43251120

約数和(自身を除く): 22740464

約数列:

[1, 2, 4, 8, 16, 29, 32, 43, 58, 64, 86, 116, 172, 232, 257, 344, 464, 514, 688, 928, 1028, 1247, 1376, 1856, 2056, 2494, 2752, 4112, 4988, 7453, 8224, 9976, 11051, 14906, 16448, 19952, 22102, 29812, 39904, 44204, 59624, 79808, 88408, 119248, 176816, 238496, 320479, 353632, 476992, 640958, 707264, 1281916, 2563832, 5127664, 10255328, 20510656]

約数ペア:

[(1, 20510656), (2, 10255328), (4, 5127664), (8, 2563832), (16, 1281916), (29, 707264), (32, 640958), (43, 476992), (58, 353632), (64, 320479), (86, 238496), (116, 176816), (172, 119248), (232, 88408), (257, 79808), (344, 59624), (464, 44204), (514, 39904), (688, 29812), (928, 22102), (1028, 19952), (1247, 16448), (1376, 14906), (1856, 11051), (2056, 9976), (2494, 8224), (2752, 7453), (4112, 4988)]