20041240

素因数分解:

$2^3\times 5^1\times {\mathrm{501031}}^1$

素因数の和:501042

約数の個数: 16

約数和(自身を含む): 45092880

約数和(自身を除く): 25051640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 501031, 1002062, 2004124, 2505155, 4008248, 5010310, 10020620, 20041240]

約数ペア:

[(1, 20041240), (2, 10020620), (4, 5010310), (5, 4008248), (8, 2505155), (10, 2004124), (20, 1002062), (40, 501031)]