201808780

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{24671}}^1$

素因数の和:25089

約数の個数: 24

約数和(自身を含む): 424851840

約数和(自身を除く): 223043060

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 24671, 49342, 98684, 123355, 246710, 493420, 10090439, 20180878, 40361756, 50452195, 100904390, 201808780]

約数ペア:

[(1, 201808780), (2, 100904390), (4, 50452195), (5, 40361756), (10, 20180878), (20, 10090439), (409, 493420), (818, 246710), (1636, 123355), (2045, 98684), (4090, 49342), (8180, 24671)]