20758420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{45127}}^1$

素因数の和:45159

約数の個数: 24

約数和(自身を含む): 45489024

約数和(自身を除く): 24730604

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 45127, 90254, 180508, 225635, 451270, 902540, 1037921, 2075842, 4151684, 5189605, 10379210, 20758420]

約数ペア:

[(1, 20758420), (2, 10379210), (4, 5189605), (5, 4151684), (10, 2075842), (20, 1037921), (23, 902540), (46, 451270), (92, 225635), (115, 180508), (230, 90254), (460, 45127)]