128284280

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{29423}}^1$

素因数の和:29543

約数の個数: 32

約数和(自身を含む): 291297600

約数和(自身を除く): 163013320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 29423, 58846, 117692, 147115, 235384, 294230, 588460, 1176920, 3207107, 6414214, 12828428, 16035535, 25656856, 32071070, 64142140, 128284280]

約数ペア:

[(1, 128284280), (2, 64142140), (4, 32071070), (5, 25656856), (8, 16035535), (10, 12828428), (20, 6414214), (40, 3207107), (109, 1176920), (218, 588460), (436, 294230), (545, 235384), (872, 147115), (1090, 117692), (2180, 58846), (4360, 29423)]