20639232

素因数分解:

$2^9\times 3^3\times {\mathrm{1493}}^1$

素因数の和:1520

約数の個数: 80

約数和(自身を含む): 61134480

約数和(自身を除く): 40495248

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 128, 144, 192, 216, 256, 288, 384, 432, 512, 576, 768, 864, 1152, 1493, 1536, 1728, 2304, 2986, 3456, 4479, 4608, 5972, 6912, 8958, 11944, 13437, 13824, 17916, 23888, 26874, 35832, 40311, 47776, 53748, 71664, 80622, 95552, 107496, 143328, 161244, 191104, 214992, 286656, 322488, 382208, 429984, 573312, 644976, 764416, 859968, 1146624, 1289952, 1719936, 2293248, 2579904, 3439872, 5159808, 6879744, 10319616, 20639232]

約数ペア:

[(1, 20639232), (2, 10319616), (3, 6879744), (4, 5159808), (6, 3439872), (8, 2579904), (9, 2293248), (12, 1719936), (16, 1289952), (18, 1146624), (24, 859968), (27, 764416), (32, 644976), (36, 573312), (48, 429984), (54, 382208), (64, 322488), (72, 286656), (96, 214992), (108, 191104), (128, 161244), (144, 143328), (192, 107496), (216, 95552), (256, 80622), (288, 71664), (384, 53748), (432, 47776), (512, 40311), (576, 35832), (768, 26874), (864, 23888), (1152, 17916), (1493, 13824), (1536, 13437), (1728, 11944), (2304, 8958), (2986, 6912), (3456, 5972), (4479, 4608)]