554418640

素因数分解:

$2^4\times 5^1\times {\mathrm{6930233}}^1$

素因数の和:6930246

約数の個数: 20

約数和(自身を含む): 1289023524

約数和(自身を除く): 734604884

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6930233, 13860466, 27720932, 34651165, 55441864, 69302330, 110883728, 138604660, 277209320, 554418640]

約数ペア:

[(1, 554418640), (2, 277209320), (4, 138604660), (5, 110883728), (8, 69302330), (10, 55441864), (16, 34651165), (20, 27720932), (40, 13860466), (80, 6930233)]