28668280

素因数分解:

$2^3\times 5^1\times {\mathrm{716707}}^1$

素因数の和:716718

約数の個数: 16

約数和(自身を含む): 64503720

約数和(自身を除く): 35835440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 716707, 1433414, 2866828, 3583535, 5733656, 7167070, 14334140, 28668280]

約数ペア:

[(1, 28668280), (2, 14334140), (4, 7167070), (5, 5733656), (8, 3583535), (10, 2866828), (20, 1433414), (40, 716707)]