340842020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{415661}}^1$

素因数の和:415711

約数の個数: 24

約数和(自身を含む): 733227768

約数和(自身を除く): 392385748

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 415661, 831322, 1662644, 2078305, 4156610, 8313220, 17042101, 34084202, 68168404, 85210505, 170421010, 340842020]

約数ペア:

[(1, 340842020), (2, 170421010), (4, 85210505), (5, 68168404), (10, 34084202), (20, 17042101), (41, 8313220), (82, 4156610), (164, 2078305), (205, 1662644), (410, 831322), (820, 415661)]