80008640

素因数分解:

$2^6\times 5^1\times {\mathrm{250027}}^1$

素因数の和:250044

約数の個数: 28

約数和(自身を含む): 190521336

約数和(自身を除く): 110512696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 250027, 500054, 1000108, 1250135, 2000216, 2500270, 4000432, 5000540, 8000864, 10001080, 16001728, 20002160, 40004320, 80008640]

約数ペア:

[(1, 80008640), (2, 40004320), (4, 20002160), (5, 16001728), (8, 10001080), (10, 8000864), (16, 5000540), (20, 4000432), (32, 2500270), (40, 2000216), (64, 1250135), (80, 1000108), (160, 500054), (320, 250027)]