28389675

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{8803}}^1$

素因数の和:8859

約数の個数: 24

約数和(自身を含む): 48034624

約数和(自身を除く): 19644949

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 8803, 26409, 44015, 132045, 220075, 378529, 660225, 1135587, 1892645, 5677935, 9463225, 28389675]

約数ペア:

[(1, 28389675), (3, 9463225), (5, 5677935), (15, 1892645), (25, 1135587), (43, 660225), (75, 378529), (129, 220075), (215, 132045), (645, 44015), (1075, 26409), (3225, 8803)]