28160780

素因数分解:

$2^2\times 5^1\times {\mathrm{769}}^1\times {\mathrm{1831}}^1$

素因数の和:2609

約数の個数: 24

約数和(自身を含む): 59246880

約数和(自身を除く): 31086100

約数列:

[1, 2, 4, 5, 10, 20, 769, 1538, 1831, 3076, 3662, 3845, 7324, 7690, 9155, 15380, 18310, 36620, 1408039, 2816078, 5632156, 7040195, 14080390, 28160780]

約数ペア:

[(1, 28160780), (2, 14080390), (4, 7040195), (5, 5632156), (10, 2816078), (20, 1408039), (769, 36620), (1538, 18310), (1831, 15380), (3076, 9155), (3662, 7690), (3845, 7324)]