1880450020

素因数分解:

$2^2\times 5^1\times {\mathrm{94022501}}^1$

素因数の和:94022510

約数の個数: 12

約数和(自身を含む): 3948945084

約数和(自身を除く): 2068495064

約数列:

[1, 2, 4, 5, 10, 20, 94022501, 188045002, 376090004, 470112505, 940225010, 1880450020]

約数ペア:

[(1, 1880450020), (2, 940225010), (4, 470112505), (5, 376090004), (10, 188045002), (20, 94022501)]