18685340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{22787}}^1$

素因数の和:22837

約数の個数: 24

約数和(自身を含む): 40198032

約数和(自身を除く): 21512692

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 22787, 45574, 91148, 113935, 227870, 455740, 934267, 1868534, 3737068, 4671335, 9342670, 18685340]

約数ペア:

[(1, 18685340), (2, 9342670), (4, 4671335), (5, 3737068), (10, 1868534), (20, 934267), (41, 455740), (82, 227870), (164, 113935), (205, 91148), (410, 45574), (820, 22787)]