19700440

素因数分解:

$2^3\times 5^1\times {\mathrm{492511}}^1$

素因数の和:492522

約数の個数: 16

約数和(自身を含む): 44326080

約数和(自身を除く): 24625640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 492511, 985022, 1970044, 2462555, 3940088, 4925110, 9850220, 19700440]

約数ペア:

[(1, 19700440), (2, 9850220), (4, 4925110), (5, 3940088), (8, 2462555), (10, 1970044), (20, 985022), (40, 492511)]