27889100

素因数分解:

$2^2\times 5^2\times {\mathrm{278891}}^1$

素因数の和:278905

約数の個数: 18

約数和(自身を含む): 60519564

約数和(自身を除く): 32630464

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 278891, 557782, 1115564, 1394455, 2788910, 5577820, 6972275, 13944550, 27889100]

約数ペア:

[(1, 27889100), (2, 13944550), (4, 6972275), (5, 5577820), (10, 2788910), (20, 1394455), (25, 1115564), (50, 557782), (100, 278891)]