28880425

素因数分解:

$5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2089}}^1$

素因数の和:2185

約数の個数: 24

約数和(自身を含む): 41465600

約数和(自身を除く): 12585175

約数列:

[1, 5, 7, 25, 35, 79, 175, 395, 553, 1975, 2089, 2765, 10445, 13825, 14623, 52225, 73115, 165031, 365575, 825155, 1155217, 4125775, 5776085, 28880425]

約数ペア:

[(1, 28880425), (5, 5776085), (7, 4125775), (25, 1155217), (35, 825155), (79, 365575), (175, 165031), (395, 73115), (553, 52225), (1975, 14623), (2089, 13825), (2765, 10445)]