30187720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{17551}}^1$

素因数の和:17605

約数の個数: 32

約数和(自身を含む): 69505920

約数和(自身を除く): 39318200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 17551, 35102, 70204, 87755, 140408, 175510, 351020, 702040, 754693, 1509386, 3018772, 3773465, 6037544, 7546930, 15093860, 30187720]

約数ペア:

[(1, 30187720), (2, 15093860), (4, 7546930), (5, 6037544), (8, 3773465), (10, 3018772), (20, 1509386), (40, 754693), (43, 702040), (86, 351020), (172, 175510), (215, 140408), (344, 87755), (430, 70204), (860, 35102), (1720, 17551)]