18440020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{40087}}^1$

素因数の和:40119

約数の個数: 24

約数和(自身を含む): 40408704

約数和(自身を除く): 21968684

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 40087, 80174, 160348, 200435, 400870, 801740, 922001, 1844002, 3688004, 4610005, 9220010, 18440020]

約数ペア:

[(1, 18440020), (2, 9220010), (4, 4610005), (5, 3688004), (10, 1844002), (20, 922001), (23, 801740), (46, 400870), (92, 200435), (115, 160348), (230, 80174), (460, 40087)]