20156044970

素因数分解:

$2^1\times 5^1\times {\mathrm{1213}}^1\times {\mathrm{1661669}}^1$

素因数の和:1662889

約数の個数: 16

約数和(自身を含む): 36310812840

約数和(自身を除く): 16154767870

約数列:

[1, 2, 5, 10, 1213, 2426, 6065, 12130, 1661669, 3323338, 8308345, 16616690, 2015604497, 4031208994, 10078022485, 20156044970]

約数ペア:

[(1, 20156044970), (2, 10078022485), (5, 4031208994), (10, 2015604497), (1213, 16616690), (2426, 8308345), (6065, 3323338), (12130, 1661669)]