2018979640

素因数分解:

$2^3\times 5^1\times {\mathrm{50474491}}^1$

素因数の和:50474502

約数の個数: 16

約数和(自身を含む): 4542704280

約数和(自身を除く): 2523724640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 50474491, 100948982, 201897964, 252372455, 403795928, 504744910, 1009489820, 2018979640]

約数ペア:

[(1, 2018979640), (2, 1009489820), (4, 504744910), (5, 403795928), (8, 252372455), (10, 201897964), (20, 100948982), (40, 50474491)]