309825

素因数分解:

$3^6\times 5^2\times {\mathrm{17}}^1$

素因数の和:45

約数の個数: 42

約数和(自身を含む): 609894

約数和(自身を除く): 300069

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 81, 85, 135, 153, 225, 243, 255, 405, 425, 459, 675, 729, 765, 1215, 1275, 1377, 2025, 2295, 3645, 3825, 4131, 6075, 6885, 11475, 12393, 18225, 20655, 34425, 61965, 103275, 309825]

約数ペア:

[(1, 309825), (3, 103275), (5, 61965), (9, 34425), (15, 20655), (17, 18225), (25, 12393), (27, 11475), (45, 6885), (51, 6075), (75, 4131), (81, 3825), (85, 3645), (135, 2295), (153, 2025), (225, 1377), (243, 1275), (255, 1215), (405, 765), (425, 729), (459, 675)]