9782020

素因数分解:

$2^2\times 5^1\times {\mathrm{489101}}^1$

素因数の和:489110

約数の個数: 12

約数和(自身を含む): 20542284

約数和(自身を除く): 10760264

約数列:

[1, 2, 4, 5, 10, 20, 489101, 978202, 1956404, 2445505, 4891010, 9782020]

約数ペア:

[(1, 9782020), (2, 4891010), (4, 2445505), (5, 1956404), (10, 978202), (20, 489101)]