67820380

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{8291}}^1$

素因数の和:8709

約数の個数: 24

約数和(自身を含む): 142788240

約数和(自身を除く): 74967860

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 8291, 16582, 33164, 41455, 82910, 165820, 3391019, 6782038, 13564076, 16955095, 33910190, 67820380]

約数ペア:

[(1, 67820380), (2, 33910190), (4, 16955095), (5, 13564076), (10, 6782038), (20, 3391019), (409, 165820), (818, 82910), (1636, 41455), (2045, 33164), (4090, 16582), (8180, 8291)]