27990180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{155501}}^1$

素因数の和:155516

約数の個数: 36

約数和(自身を含む): 84904092

約数和(自身を除く): 56913912

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 155501, 311002, 466503, 622004, 777505, 933006, 1399509, 1555010, 1866012, 2332515, 2799018, 3110020, 4665030, 5598036, 6997545, 9330060, 13995090, 27990180]

約数ペア:

[(1, 27990180), (2, 13995090), (3, 9330060), (4, 6997545), (5, 5598036), (6, 4665030), (9, 3110020), (10, 2799018), (12, 2332515), (15, 1866012), (18, 1555010), (20, 1399509), (30, 933006), (36, 777505), (45, 622004), (60, 466503), (90, 311002), (180, 155501)]