20488328

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5153}}^1$

素因数の和:5237

約数の個数: 32

約数和(自身を含む): 44530560

約数和(自身を除く): 24042232

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 5153, 10306, 20612, 36071, 41224, 72142, 144284, 288568, 365863, 731726, 1463452, 2561041, 2926904, 5122082, 10244164, 20488328]

約数ペア:

[(1, 20488328), (2, 10244164), (4, 5122082), (7, 2926904), (8, 2561041), (14, 1463452), (28, 731726), (56, 365863), (71, 288568), (142, 144284), (284, 72142), (497, 41224), (568, 36071), (994, 20612), (1988, 10306), (3976, 5153)]