28712120

素因数分解:

$2^3\times 5^1\times {\mathrm{717803}}^1$

素因数の和:717814

約数の個数: 16

約数和(自身を含む): 64602360

約数和(自身を除く): 35890240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 717803, 1435606, 2871212, 3589015, 5742424, 7178030, 14356060, 28712120]

約数ペア:

[(1, 28712120), (2, 14356060), (4, 7178030), (5, 5742424), (8, 3589015), (10, 2871212), (20, 1435606), (40, 717803)]