1728880

素因数分解:

$2^4\times 5^1\times {\mathrm{21611}}^1$

素因数の和:21624

約数の個数: 20

約数和(自身を含む): 4019832

約数和(自身を除く): 2290952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 21611, 43222, 86444, 108055, 172888, 216110, 345776, 432220, 864440, 1728880]

約数ペア:

[(1, 1728880), (2, 864440), (4, 432220), (5, 345776), (8, 216110), (10, 172888), (16, 108055), (20, 86444), (40, 43222), (80, 21611)]