8490015

素因数分解:

$3^4\times 5^1\times {\mathrm{20963}}^1$

素因数の和:20980

約数の個数: 20

約数和(自身を含む): 15219864

約数和(自身を除く): 6729849

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 20963, 62889, 104815, 188667, 314445, 566001, 943335, 1698003, 2830005, 8490015]

約数ペア:

[(1, 8490015), (3, 2830005), (5, 1698003), (9, 943335), (15, 566001), (27, 314445), (45, 188667), (81, 104815), (135, 62889), (405, 20963)]