20995020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{116639}}^1$

素因数の和:116654

約数の個数: 36

約数和(自身を含む): 63685440

約数和(自身を除く): 42690420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 116639, 233278, 349917, 466556, 583195, 699834, 1049751, 1166390, 1399668, 1749585, 2099502, 2332780, 3499170, 4199004, 5248755, 6998340, 10497510, 20995020]

約数ペア:

[(1, 20995020), (2, 10497510), (3, 6998340), (4, 5248755), (5, 4199004), (6, 3499170), (9, 2332780), (10, 2099502), (12, 1749585), (15, 1399668), (18, 1166390), (20, 1049751), (30, 699834), (36, 583195), (45, 466556), (60, 349917), (90, 233278), (180, 116639)]