66020720

素因数分解:

$2^4\times 5^1\times {\mathrm{825259}}^1$

素因数の和:825272

約数の個数: 20

約数和(自身を含む): 153498360

約数和(自身を除く): 87477640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 825259, 1650518, 3301036, 4126295, 6602072, 8252590, 13204144, 16505180, 33010360, 66020720]

約数ペア:

[(1, 66020720), (2, 33010360), (4, 16505180), (5, 13204144), (8, 8252590), (10, 6602072), (16, 4126295), (20, 3301036), (40, 1650518), (80, 825259)]