2019796820

素因数分解:

$2^2\times 5^1\times {\mathrm{100989841}}^1$

素因数の和:100989850

約数の個数: 12

約数和(自身を含む): 4241573364

約数和(自身を除く): 2221776544

約数列:

[1, 2, 4, 5, 10, 20, 100989841, 201979682, 403959364, 504949205, 1009898410, 2019796820]

約数ペア:

[(1, 2019796820), (2, 1009898410), (4, 504949205), (5, 403959364), (10, 201979682), (20, 100989841)]