8581456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41257}}^1$

素因数の和:41278

約数の個数: 20

約数和(自身を含む): 17905972

約数和(自身を除く): 9324516

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 41257, 82514, 165028, 330056, 536341, 660112, 1072682, 2145364, 4290728, 8581456]

約数ペア:

[(1, 8581456), (2, 4290728), (4, 2145364), (8, 1072682), (13, 660112), (16, 536341), (26, 330056), (52, 165028), (104, 82514), (208, 41257)]