80277320

素因数分解:

$2^3\times 5^1\times {\mathrm{911}}^1\times {\mathrm{2203}}^1$

素因数の和:3125

約数の個数: 32

約数和(自身を含む): 180904320

約数和(自身を除く): 100627000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 911, 1822, 2203, 3644, 4406, 4555, 7288, 8812, 9110, 11015, 17624, 18220, 22030, 36440, 44060, 88120, 2006933, 4013866, 8027732, 10034665, 16055464, 20069330, 40138660, 80277320]

約数ペア:

[(1, 80277320), (2, 40138660), (4, 20069330), (5, 16055464), (8, 10034665), (10, 8027732), (20, 4013866), (40, 2006933), (911, 88120), (1822, 44060), (2203, 36440), (3644, 22030), (4406, 18220), (4555, 17624), (7288, 11015), (8812, 9110)]