20173750

素因数分解:

$2^1\times 5^4\times {\mathrm{16139}}^1$

素因数の和:16161

約数の個数: 20

約数和(自身を含む): 37816020

約数和(自身を除く): 17642270

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 16139, 32278, 80695, 161390, 403475, 806950, 2017375, 4034750, 10086875, 20173750]

約数ペア:

[(1, 20173750), (2, 10086875), (5, 4034750), (10, 2017375), (25, 806950), (50, 403475), (125, 161390), (250, 80695), (625, 32278), (1250, 16139)]