28087725

素因数分解:

$3^1\times 5^2\times {\mathrm{487}}^1\times {\mathrm{769}}^1$

素因数の和:1269

約数の個数: 24

約数和(自身を含む): 46594240

約数和(自身を除く): 18506515

約数列:

[1, 3, 5, 15, 25, 75, 487, 769, 1461, 2307, 2435, 3845, 7305, 11535, 12175, 19225, 36525, 57675, 374503, 1123509, 1872515, 5617545, 9362575, 28087725]

約数ペア:

[(1, 28087725), (3, 9362575), (5, 5617545), (15, 1872515), (25, 1123509), (75, 374503), (487, 57675), (769, 36525), (1461, 19225), (2307, 12175), (2435, 11535), (3845, 7305)]