9990180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{55501}}^1$

素因数の和:55516

約数の個数: 36

約数和(自身を含む): 30304092

約数和(自身を除く): 20313912

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 55501, 111002, 166503, 222004, 277505, 333006, 499509, 555010, 666012, 832515, 999018, 1110020, 1665030, 1998036, 2497545, 3330060, 4995090, 9990180]

約数ペア:

[(1, 9990180), (2, 4995090), (3, 3330060), (4, 2497545), (5, 1998036), (6, 1665030), (9, 1110020), (10, 999018), (12, 832515), (15, 666012), (18, 555010), (20, 499509), (30, 333006), (36, 277505), (45, 222004), (60, 166503), (90, 111002), (180, 55501)]