20155250

素因数分解:

$2^1\times 5^3\times {\mathrm{80621}}^1$

素因数の和:80638

約数の個数: 16

約数和(自身を含む): 37731096

約数和(自身を除く): 17575846

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 80621, 161242, 403105, 806210, 2015525, 4031050, 10077625, 20155250]

約数ペア:

[(1, 20155250), (2, 10077625), (5, 4031050), (10, 2015525), (25, 806210), (50, 403105), (125, 161242), (250, 80621)]