28340390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{218003}}^1$

素因数の和:218023

約数の個数: 16

約数和(自身を含む): 54937008

約数和(自身を除く): 26596618

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 218003, 436006, 1090015, 2180030, 2834039, 5668078, 14170195, 28340390]

約数ペア:

[(1, 28340390), (2, 14170195), (5, 5668078), (10, 2834039), (13, 2180030), (26, 1090015), (65, 436006), (130, 218003)]