28505475

素因数分解:

$3^2\times 5^2\times {\mathrm{126691}}^1$

素因数の和:126707

約数の個数: 18

約数和(自身を含む): 51056876

約数和(自身を除く): 22551401

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 126691, 380073, 633455, 1140219, 1900365, 3167275, 5701095, 9501825, 28505475]

約数ペア:

[(1, 28505475), (3, 9501825), (5, 5701095), (9, 3167275), (15, 1900365), (25, 1140219), (45, 633455), (75, 380073), (225, 126691)]