1291212080

素因数分解:

$2^4\times 5^1\times {\mathrm{16140151}}^1$

素因数の和:16140164

約数の個数: 20

約数和(自身を含む): 3002068272

約数和(自身を除く): 1710856192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 16140151, 32280302, 64560604, 80700755, 129121208, 161401510, 258242416, 322803020, 645606040, 1291212080]

約数ペア:

[(1, 1291212080), (2, 645606040), (4, 322803020), (5, 258242416), (8, 161401510), (10, 129121208), (16, 80700755), (20, 64560604), (40, 32280302), (80, 16140151)]