66347980

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{8111}}^1$

素因数の和:8529

約数の個数: 24

約数和(自身を含む): 139688640

約数和(自身を除く): 73340660

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8111, 8180, 16222, 32444, 40555, 81110, 162220, 3317399, 6634798, 13269596, 16586995, 33173990, 66347980]

約数ペア:

[(1, 66347980), (2, 33173990), (4, 16586995), (5, 13269596), (10, 6634798), (20, 3317399), (409, 162220), (818, 81110), (1636, 40555), (2045, 32444), (4090, 16222), (8111, 8180)]