20487420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{113819}}^1$

素因数の和:113834

約数の個数: 36

約数和(自身を含む): 62145720

約数和(自身を除く): 41658300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 113819, 227638, 341457, 455276, 569095, 682914, 1024371, 1138190, 1365828, 1707285, 2048742, 2276380, 3414570, 4097484, 5121855, 6829140, 10243710, 20487420]

約数ペア:

[(1, 20487420), (2, 10243710), (3, 6829140), (4, 5121855), (5, 4097484), (6, 3414570), (9, 2276380), (10, 2048742), (12, 1707285), (15, 1365828), (18, 1138190), (20, 1024371), (30, 682914), (36, 569095), (45, 455276), (60, 341457), (90, 227638), (180, 113819)]