40728280

素因数分解:

$2^3\times 5^1\times {\mathrm{1018207}}^1$

素因数の和:1018218

約数の個数: 16

約数和(自身を含む): 91638720

約数和(自身を除く): 50910440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1018207, 2036414, 4072828, 5091035, 8145656, 10182070, 20364140, 40728280]

約数ペア:

[(1, 40728280), (2, 20364140), (4, 10182070), (5, 8145656), (8, 5091035), (10, 4072828), (20, 2036414), (40, 1018207)]