90820090

素因数分解:

$2^1\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{9001}}^1$

素因数の和:10017

約数の個数: 16

約数和(自身を含む): 163656360

約数和(自身を除く): 72836270

約数列:

[1, 2, 5, 10, 1009, 2018, 5045, 9001, 10090, 18002, 45005, 90010, 9082009, 18164018, 45410045, 90820090]

約数ペア:

[(1, 90820090), (2, 45410045), (5, 18164018), (10, 9082009), (1009, 90010), (2018, 45005), (5045, 18002), (9001, 10090)]