20576025

素因数分解:

$3^6\times 5^2\times {\mathrm{1129}}^1$

素因数の和:1157

約数の個数: 42

約数和(自身を含む): 38287790

約数和(自身を除く): 17711765

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 729, 1129, 1215, 2025, 3387, 3645, 5645, 6075, 10161, 16935, 18225, 28225, 30483, 50805, 84675, 91449, 152415, 254025, 274347, 457245, 762075, 823041, 1371735, 2286225, 4115205, 6858675, 20576025]

約数ペア:

[(1, 20576025), (3, 6858675), (5, 4115205), (9, 2286225), (15, 1371735), (25, 823041), (27, 762075), (45, 457245), (75, 274347), (81, 254025), (135, 152415), (225, 91449), (243, 84675), (405, 50805), (675, 30483), (729, 28225), (1129, 18225), (1215, 16935), (2025, 10161), (3387, 6075), (3645, 5645)]