20129870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{118411}}^1$

素因数の和:118435

約数の個数: 16

約数和(自身を含む): 38365488

約数和(自身を除く): 18235618

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 118411, 236822, 592055, 1184110, 2012987, 4025974, 10064935, 20129870]

約数ペア:

[(1, 20129870), (2, 10064935), (5, 4025974), (10, 2012987), (17, 1184110), (34, 592055), (85, 236822), (170, 118411)]