20257115

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{3557}}^1$

素因数の和:3646

約数の個数: 16

約数和(自身を含む): 26129952

約数和(自身を除く): 5872837

約数列:

[1, 5, 17, 67, 85, 335, 1139, 3557, 5695, 17785, 60469, 238319, 302345, 1191595, 4051423, 20257115]

約数ペア:

[(1, 20257115), (5, 4051423), (17, 1191595), (67, 302345), (85, 238319), (335, 60469), (1139, 17785), (3557, 5695)]