289372240

素因数分解:

$2^4\times 5^1\times {\mathrm{3617153}}^1$

素因数の和:3617166

約数の個数: 20

約数和(自身を含む): 672790644

約数和(自身を除く): 383418404

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3617153, 7234306, 14468612, 18085765, 28937224, 36171530, 57874448, 72343060, 144686120, 289372240]

約数ペア:

[(1, 289372240), (2, 144686120), (4, 72343060), (5, 57874448), (8, 36171530), (10, 28937224), (16, 18085765), (20, 14468612), (40, 7234306), (80, 3617153)]