20161689905

素因数分解:

$5^1\times 7^1\times {\mathrm{601}}^1\times {\mathrm{739}}^1\times {\mathrm{1297}}^1$

素因数の和:2649

約数の個数: 32

約数和(自身を含む): 27755185920

約数和(自身を除く): 7593496015

約数列:

[1, 5, 7, 35, 601, 739, 1297, 3005, 3695, 4207, 5173, 6485, 9079, 21035, 25865, 45395, 444139, 779497, 958483, 2220695, 3108973, 3897485, 4792415, 5456479, 6709381, 15544865, 27282395, 33546905, 576048283, 2880241415, 4032337981, 20161689905]

約数ペア:

[(1, 20161689905), (5, 4032337981), (7, 2880241415), (35, 576048283), (601, 33546905), (739, 27282395), (1297, 15544865), (3005, 6709381), (3695, 5456479), (4207, 4792415), (5173, 3897485), (6485, 3108973), (9079, 2220695), (21035, 958483), (25865, 779497), (45395, 444139)]