165340820

素因数分解:

$2^2\times 5^1\times {\mathrm{8267041}}^1$

素因数の和:8267050

約数の個数: 12

約数和(自身を含む): 347215764

約数和(自身を除く): 181874944

約数列:

[1, 2, 4, 5, 10, 20, 8267041, 16534082, 33068164, 41335205, 82670410, 165340820]

約数ペア:

[(1, 165340820), (2, 82670410), (4, 41335205), (5, 33068164), (10, 16534082), (20, 8267041)]