18657140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{40559}}^1$

素因数の和:40591

約数の個数: 24

約数和(自身を含む): 40884480

約数和(自身を除く): 22227340

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 40559, 81118, 162236, 202795, 405590, 811180, 932857, 1865714, 3731428, 4664285, 9328570, 18657140]

約数ペア:

[(1, 18657140), (2, 9328570), (4, 4664285), (5, 3731428), (10, 1865714), (20, 932857), (23, 811180), (46, 405590), (92, 202795), (115, 162236), (230, 81118), (460, 40559)]