26780720

素因数分解:

$2^4\times 5^1\times {\mathrm{334759}}^1$

素因数の和:334772

約数の個数: 20

約数和(自身を含む): 62265360

約数和(自身を除く): 35484640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 334759, 669518, 1339036, 1673795, 2678072, 3347590, 5356144, 6695180, 13390360, 26780720]

約数ペア:

[(1, 26780720), (2, 13390360), (4, 6695180), (5, 5356144), (8, 3347590), (10, 2678072), (16, 1673795), (20, 1339036), (40, 669518), (80, 334759)]