20512142720

素因数分解:

$2^7\times 5^1\times {\mathrm{32050223}}^1$

素因数の和:32050242

約数の個数: 32

約数和(自身を含む): 49036842720

約数和(自身を除く): 28524700000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32050223, 64100446, 128200892, 160251115, 256401784, 320502230, 512803568, 641004460, 1025607136, 1282008920, 2051214272, 2564017840, 4102428544, 5128035680, 10256071360, 20512142720]

約数ペア:

[(1, 20512142720), (2, 10256071360), (4, 5128035680), (5, 4102428544), (8, 2564017840), (10, 2051214272), (16, 1282008920), (20, 1025607136), (32, 641004460), (40, 512803568), (64, 320502230), (80, 256401784), (128, 160251115), (160, 128200892), (320, 64100446), (640, 32050223)]