3280180

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{409}}^1$

素因数の和:819

約数の個数: 24

約数和(自身を含む): 6922440

約数和(自身を除く): 3642260

約数列:

[1, 2, 4, 5, 10, 20, 401, 409, 802, 818, 1604, 1636, 2005, 2045, 4010, 4090, 8020, 8180, 164009, 328018, 656036, 820045, 1640090, 3280180]

約数ペア:

[(1, 3280180), (2, 1640090), (4, 820045), (5, 656036), (10, 328018), (20, 164009), (401, 8180), (409, 8020), (802, 4090), (818, 4010), (1604, 2045), (1636, 2005)]