128528120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{459029}}^1$

素因数の和:459047

約数の個数: 32

約数和(自身を含む): 330501600

約数和(自身を除く): 201973480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 459029, 918058, 1836116, 2295145, 3213203, 3672232, 4590290, 6426406, 9180580, 12852812, 16066015, 18361160, 25705624, 32132030, 64264060, 128528120]

約数ペア:

[(1, 128528120), (2, 64264060), (4, 32132030), (5, 25705624), (7, 18361160), (8, 16066015), (10, 12852812), (14, 9180580), (20, 6426406), (28, 4590290), (35, 3672232), (40, 3213203), (56, 2295145), (70, 1836116), (140, 918058), (280, 459029)]