8164040

素因数分解:

$2^3\times 5^1\times {\mathrm{204101}}^1$

素因数の和:204112

約数の個数: 16

約数和(自身を含む): 18369180

約数和(自身を除く): 10205140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 204101, 408202, 816404, 1020505, 1632808, 2041010, 4082020, 8164040]

約数ペア:

[(1, 8164040), (2, 4082020), (4, 2041010), (5, 1632808), (8, 1020505), (10, 816404), (20, 408202), (40, 204101)]