28297225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2393}}^1$

素因数の和:2457

約数の個数: 24

約数和(自身を含む): 39184992

約数和(自身を除く): 10887767

約数列:

[1, 5, 11, 25, 43, 55, 215, 275, 473, 1075, 2365, 2393, 11825, 11965, 26323, 59825, 102899, 131615, 514495, 658075, 1131889, 2572475, 5659445, 28297225]

約数ペア:

[(1, 28297225), (5, 5659445), (11, 2572475), (25, 1131889), (43, 658075), (55, 514495), (215, 131615), (275, 102899), (473, 59825), (1075, 26323), (2365, 11965), (2393, 11825)]