20169940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{144071}}^1$

素因数の和:144087

約数の個数: 24

約数和(自身を含む): 48408192

約数和(自身を除く): 28238252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 144071, 288142, 576284, 720355, 1008497, 1440710, 2016994, 2881420, 4033988, 5042485, 10084970, 20169940]

約数ペア:

[(1, 20169940), (2, 10084970), (4, 5042485), (5, 4033988), (7, 2881420), (10, 2016994), (14, 1440710), (20, 1008497), (28, 720355), (35, 576284), (70, 288142), (140, 144071)]