209892920

素因数分解:

$2^3\times 5^1\times {\mathrm{5247323}}^1$

素因数の和:5247334

約数の個数: 16

約数和(自身を含む): 472259160

約数和(自身を除く): 262366240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5247323, 10494646, 20989292, 26236615, 41978584, 52473230, 104946460, 209892920]

約数ペア:

[(1, 209892920), (2, 104946460), (4, 52473230), (5, 41978584), (8, 26236615), (10, 20989292), (20, 10494646), (40, 5247323)]