16857520

素因数分解:

$2^4\times 5^1\times {\mathrm{210719}}^1$

素因数の和:210732

約数の個数: 20

約数和(自身を含む): 39193920

約数和(自身を除く): 22336400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 210719, 421438, 842876, 1053595, 1685752, 2107190, 3371504, 4214380, 8428760, 16857520]

約数ペア:

[(1, 16857520), (2, 8428760), (4, 4214380), (5, 3371504), (8, 2107190), (10, 1685752), (16, 1053595), (20, 842876), (40, 421438), (80, 210719)]