28686860

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{8291}}^1$

素因数の和:8473

約数の個数: 24

約数和(自身を含む): 60597936

約数和(自身を除く): 31911076

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 8291, 16582, 33164, 41455, 82910, 165820, 1434343, 2868686, 5737372, 7171715, 14343430, 28686860]

約数ペア:

[(1, 28686860), (2, 14343430), (4, 7171715), (5, 5737372), (10, 2868686), (20, 1434343), (173, 165820), (346, 82910), (692, 41455), (865, 33164), (1730, 16582), (3460, 8291)]