217393640

素因数分解:

$2^3\times 5^1\times {\mathrm{5434841}}^1$

素因数の和:5434852

約数の個数: 16

約数和(自身を含む): 489135780

約数和(自身を除く): 271742140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5434841, 10869682, 21739364, 27174205, 43478728, 54348410, 108696820, 217393640]

約数ペア:

[(1, 217393640), (2, 108696820), (4, 54348410), (5, 43478728), (8, 27174205), (10, 21739364), (20, 10869682), (40, 5434841)]