16920560

素因数分解:

$2^4\times 5^1\times {\mathrm{211507}}^1$

素因数の和:211520

約数の個数: 20

約数和(自身を含む): 39340488

約数和(自身を除く): 22419928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211507, 423014, 846028, 1057535, 1692056, 2115070, 3384112, 4230140, 8460280, 16920560]

約数ペア:

[(1, 16920560), (2, 8460280), (4, 4230140), (5, 3384112), (8, 2115070), (10, 1692056), (16, 1057535), (20, 846028), (40, 423014), (80, 211507)]