20215750

素因数分解:

$2^1\times 5^3\times {\mathrm{80863}}^1$

素因数の和:80880

約数の個数: 16

約数和(自身を含む): 37844352

約数和(自身を除く): 17628602

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 80863, 161726, 404315, 808630, 2021575, 4043150, 10107875, 20215750]

約数ペア:

[(1, 20215750), (2, 10107875), (5, 4043150), (10, 2021575), (25, 808630), (50, 404315), (125, 161726), (250, 80863)]