40951280

素因数分解:

$2^4\times 5^1\times {\mathrm{511891}}^1$

素因数の和:511904

約数の個数: 20

約数和(自身を含む): 95211912

約数和(自身を除く): 54260632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 511891, 1023782, 2047564, 2559455, 4095128, 5118910, 8190256, 10237820, 20475640, 40951280]

約数ペア:

[(1, 40951280), (2, 20475640), (4, 10237820), (5, 8190256), (8, 5118910), (10, 4095128), (16, 2559455), (20, 2047564), (40, 1023782), (80, 511891)]