39720880

素因数分解:

$2^4\times 5^1\times {\mathrm{496511}}^1$

素因数の和:496524

約数の個数: 20

約数和(自身を含む): 92351232

約数和(自身を除く): 52630352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 496511, 993022, 1986044, 2482555, 3972088, 4965110, 7944176, 9930220, 19860440, 39720880]

約数ペア:

[(1, 39720880), (2, 19860440), (4, 9930220), (5, 7944176), (8, 4965110), (10, 3972088), (16, 2482555), (20, 1986044), (40, 993022), (80, 496511)]