20176720

素因数分解:

$2^4\times 5^1\times {\mathrm{252209}}^1$

素因数の和:252222

約数の個数: 20

約数和(自身を含む): 46911060

約数和(自身を除く): 26734340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252209, 504418, 1008836, 1261045, 2017672, 2522090, 4035344, 5044180, 10088360, 20176720]

約数ペア:

[(1, 20176720), (2, 10088360), (4, 5044180), (5, 4035344), (8, 2522090), (10, 2017672), (16, 1261045), (20, 1008836), (40, 504418), (80, 252209)]