865982020

素因数分解:

$2^2\times 5^1\times {\mathrm{43299101}}^1$

素因数の和:43299110

約数の個数: 12

約数和(自身を含む): 1818562284

約数和(自身を除く): 952580264

約数列:

[1, 2, 4, 5, 10, 20, 43299101, 86598202, 173196404, 216495505, 432991010, 865982020]

約数ペア:

[(1, 865982020), (2, 432991010), (4, 216495505), (5, 173196404), (10, 86598202), (20, 43299101)]