81282280

素因数分解:

$2^3\times 5^1\times {\mathrm{2032057}}^1$

素因数の和:2032068

約数の個数: 16

約数和(自身を含む): 182885220

約数和(自身を除く): 101602940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2032057, 4064114, 8128228, 10160285, 16256456, 20320570, 40641140, 81282280]

約数ペア:

[(1, 81282280), (2, 40641140), (4, 20320570), (5, 16256456), (8, 10160285), (10, 8128228), (20, 4064114), (40, 2032057)]