2016645140

素因数分解:

$2^2\times 5^1\times {\mathrm{20399}}^1\times {\mathrm{4943}}^1$

素因数の和:25351

約数の個数: 24

約数和(自身を含む): 4236019200

約数和(自身を除く): 2219374060

約数列:

[1, 2, 4, 5, 10, 20, 4943, 9886, 19772, 20399, 24715, 40798, 49430, 81596, 98860, 101995, 203990, 407980, 100832257, 201664514, 403329028, 504161285, 1008322570, 2016645140]

約数ペア:

[(1, 2016645140), (2, 1008322570), (4, 504161285), (5, 403329028), (10, 201664514), (20, 100832257), (4943, 407980), (9886, 203990), (19772, 101995), (20399, 98860), (24715, 81596), (40798, 49430)]