990180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{5501}}^1$

素因数の和:5516

約数の個数: 36

約数和(自身を含む): 3004092

約数和(自身を除く): 2013912

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 5501, 11002, 16503, 22004, 27505, 33006, 49509, 55010, 66012, 82515, 99018, 110020, 165030, 198036, 247545, 330060, 495090, 990180]

約数ペア:

[(1, 990180), (2, 495090), (3, 330060), (4, 247545), (5, 198036), (6, 165030), (9, 110020), (10, 99018), (12, 82515), (15, 66012), (18, 55010), (20, 49509), (30, 33006), (36, 27505), (45, 22004), (60, 16503), (90, 11002), (180, 5501)]