89981456

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{130787}}^1$

素因数の和:130838

約数の個数: 20

約数和(自身を含む): 178394832

約数和(自身を除く): 88413376

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 130787, 261574, 523148, 1046296, 2092592, 5623841, 11247682, 22495364, 44990728, 89981456]

約数ペア:

[(1, 89981456), (2, 44990728), (4, 22495364), (8, 11247682), (16, 5623841), (43, 2092592), (86, 1046296), (172, 523148), (344, 261574), (688, 130787)]