80263280

素因数分解:

$2^4\times 5^1\times {\mathrm{1003291}}^1$

素因数の和:1003304

約数の個数: 20

約数和(自身を含む): 186612312

約数和(自身を除く): 106349032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1003291, 2006582, 4013164, 5016455, 8026328, 10032910, 16052656, 20065820, 40131640, 80263280]

約数ペア:

[(1, 80263280), (2, 40131640), (4, 20065820), (5, 16052656), (8, 10032910), (10, 8026328), (16, 5016455), (20, 4013164), (40, 2006582), (80, 1003291)]