28084820

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{8117}}^1$

素因数の和:8299

約数の個数: 24

約数和(自身を含む): 59326344

約数和(自身を除く): 31241524

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 8117, 16234, 32468, 40585, 81170, 162340, 1404241, 2808482, 5616964, 7021205, 14042410, 28084820]

約数ペア:

[(1, 28084820), (2, 14042410), (4, 7021205), (5, 5616964), (10, 2808482), (20, 1404241), (173, 162340), (346, 81170), (692, 40585), (865, 32468), (1730, 16234), (3460, 8117)]