8682640

素因数分解:

$2^4\times 5^1\times {\mathrm{108533}}^1$

素因数の和:108546

約数の個数: 20

約数和(自身を含む): 20187324

約数和(自身を除く): 11504684

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 108533, 217066, 434132, 542665, 868264, 1085330, 1736528, 2170660, 4341320, 8682640]

約数ペア:

[(1, 8682640), (2, 4341320), (4, 2170660), (5, 1736528), (8, 1085330), (10, 868264), (16, 542665), (20, 434132), (40, 217066), (80, 108533)]