127698640

素因数分解:

$2^4\times 5^1\times {\mathrm{1596233}}^1$

素因数の和:1596246

約数の個数: 20

約数和(自身を含む): 296899524

約数和(自身を除く): 169200884

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1596233, 3192466, 6384932, 7981165, 12769864, 15962330, 25539728, 31924660, 63849320, 127698640]

約数ペア:

[(1, 127698640), (2, 63849320), (4, 31924660), (5, 25539728), (8, 15962330), (10, 12769864), (16, 7981165), (20, 6384932), (40, 3192466), (80, 1596233)]