20418075

素因数分解:

$3^5\times 5^2\times {\mathrm{3361}}^1$

素因数の和:3386

約数の個数: 36

約数和(自身を含む): 37936808

約数和(自身を除く): 17518733

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 1215, 2025, 3361, 6075, 10083, 16805, 30249, 50415, 84025, 90747, 151245, 252075, 272241, 453735, 756225, 816723, 1361205, 2268675, 4083615, 6806025, 20418075]

約数ペア:

[(1, 20418075), (3, 6806025), (5, 4083615), (9, 2268675), (15, 1361205), (25, 816723), (27, 756225), (45, 453735), (75, 272241), (81, 252075), (135, 151245), (225, 90747), (243, 84025), (405, 50415), (675, 30249), (1215, 16805), (2025, 10083), (3361, 6075)]