87858640

素因数分解:

$2^4\times 5^1\times {\mathrm{1098233}}^1$

素因数の和:1098246

約数の個数: 20

約数和(自身を含む): 204271524

約数和(自身を除く): 116412884

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1098233, 2196466, 4392932, 5491165, 8785864, 10982330, 17571728, 21964660, 43929320, 87858640]

約数ペア:

[(1, 87858640), (2, 43929320), (4, 21964660), (5, 17571728), (8, 10982330), (10, 8785864), (16, 5491165), (20, 4392932), (40, 2196466), (80, 1098233)]