18720270

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{208003}}^1$

素因数の和:208016

約数の個数: 24

約数和(自身を含む): 48672936

約数和(自身を除く): 29952666

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 208003, 416006, 624009, 1040015, 1248018, 1872027, 2080030, 3120045, 3744054, 6240090, 9360135, 18720270]

約数ペア:

[(1, 18720270), (2, 9360135), (3, 6240090), (5, 3744054), (6, 3120045), (9, 2080030), (10, 1872027), (15, 1248018), (18, 1040015), (30, 624009), (45, 416006), (90, 208003)]