79409020

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{9431}}^1$

素因数の和:9861

約数の個数: 24

約数和(自身を含む): 167172768

約数和(自身を除く): 87763748

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 4210, 8420, 9431, 18862, 37724, 47155, 94310, 188620, 3970451, 7940902, 15881804, 19852255, 39704510, 79409020]

約数ペア:

[(1, 79409020), (2, 39704510), (4, 19852255), (5, 15881804), (10, 7940902), (20, 3970451), (421, 188620), (842, 94310), (1684, 47155), (2105, 37724), (4210, 18862), (8420, 9431)]