18806240

素因数分解:

$2^5\times 5^1\times {\mathrm{117539}}^1$

素因数の和:117554

約数の個数: 24

約数和(自身を含む): 44430120

約数和(自身を除く): 25623880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 117539, 235078, 470156, 587695, 940312, 1175390, 1880624, 2350780, 3761248, 4701560, 9403120, 18806240]

約数ペア:

[(1, 18806240), (2, 9403120), (4, 4701560), (5, 3761248), (8, 2350780), (10, 1880624), (16, 1175390), (20, 940312), (32, 587695), (40, 470156), (80, 235078), (160, 117539)]