20320

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1$

素因数の和:142

約数の個数: 24

約数和(自身を含む): 48384

約数和(自身を除く): 28064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 2032, 2540, 4064, 5080, 10160, 20320]

約数ペア:

[(1, 20320), (2, 10160), (4, 5080), (5, 4064), (8, 2540), (10, 2032), (16, 1270), (20, 1016), (32, 635), (40, 508), (80, 254), (127, 160)]