28566380

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{2909}}^1$

素因数の和:3409

約数の個数: 24

約数和(自身を含む): 60132240

約数和(自身を除く): 31565860

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 2909, 4910, 5818, 9820, 11636, 14545, 29090, 58180, 1428319, 2856638, 5713276, 7141595, 14283190, 28566380]

約数ペア:

[(1, 28566380), (2, 14283190), (4, 7141595), (5, 5713276), (10, 2856638), (20, 1428319), (491, 58180), (982, 29090), (1964, 14545), (2455, 11636), (2909, 9820), (4910, 5818)]