28965380

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{3541}}^1$

素因数の和:3959

約数の個数: 24

約数和(自身を含む): 60993240

約数和(自身を除く): 32027860

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 3541, 4090, 7082, 8180, 14164, 17705, 35410, 70820, 1448269, 2896538, 5793076, 7241345, 14482690, 28965380]

約数ペア:

[(1, 28965380), (2, 14482690), (4, 7241345), (5, 5793076), (10, 2896538), (20, 1448269), (409, 70820), (818, 35410), (1636, 17705), (2045, 14164), (3541, 8180), (4090, 7082)]