8770420

素因数分解:

$2^2\times 5^1\times {\mathrm{438521}}^1$

素因数の和:438530

約数の個数: 12

約数和(自身を含む): 18417924

約数和(自身を除く): 9647504

約数列:

[1, 2, 4, 5, 10, 20, 438521, 877042, 1754084, 2192605, 4385210, 8770420]

約数ペア:

[(1, 8770420), (2, 4385210), (4, 2192605), (5, 1754084), (10, 877042), (20, 438521)]