20395030

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{19801}}^1$

素因数の和:19911

約数の個数: 16

約数和(自身を含む): 37069344

約数和(自身を除く): 16674314

約数列:

[1, 2, 5, 10, 103, 206, 515, 1030, 19801, 39602, 99005, 198010, 2039503, 4079006, 10197515, 20395030]

約数ペア:

[(1, 20395030), (2, 10197515), (5, 4079006), (10, 2039503), (103, 198010), (206, 99005), (515, 39602), (1030, 19801)]