18688420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{40627}}^1$

素因数の和:40659

約数の個数: 24

約数和(自身を含む): 40953024

約数和(自身を除く): 22264604

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 40627, 81254, 162508, 203135, 406270, 812540, 934421, 1868842, 3737684, 4672105, 9344210, 18688420]

約数ペア:

[(1, 18688420), (2, 9344210), (4, 4672105), (5, 3737684), (10, 1868842), (20, 934421), (23, 812540), (46, 406270), (92, 203135), (115, 162508), (230, 81254), (460, 40627)]