890999216

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{1295057}}^1$

素因数の和:1295108

約数の個数: 20

約数和(自身を含む): 1766459112

約数和(自身を除く): 875459896

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 1295057, 2590114, 5180228, 10360456, 20720912, 55687451, 111374902, 222749804, 445499608, 890999216]

約数ペア:

[(1, 890999216), (2, 445499608), (4, 222749804), (8, 111374902), (16, 55687451), (43, 20720912), (86, 10360456), (172, 5180228), (344, 2590114), (688, 1295057)]