80202280

素因数分解:

$2^3\times 5^1\times {\mathrm{2005057}}^1$

素因数の和:2005068

約数の個数: 16

約数和(自身を含む): 180455220

約数和(自身を除く): 100252940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2005057, 4010114, 8020228, 10025285, 16040456, 20050570, 40101140, 80202280]

約数ペア:

[(1, 80202280), (2, 40101140), (4, 20050570), (5, 16040456), (8, 10025285), (10, 8020228), (20, 4010114), (40, 2005057)]