128020900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{182887}}^1$

素因数の和:182908

約数の個数: 36

約数和(自身を含む): 317493568

約数和(自身を除く): 189472668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 182887, 365774, 731548, 914435, 1280209, 1828870, 2560418, 3657740, 4572175, 5120836, 6401045, 9144350, 12802090, 18288700, 25604180, 32005225, 64010450, 128020900]

約数ペア:

[(1, 128020900), (2, 64010450), (4, 32005225), (5, 25604180), (7, 18288700), (10, 12802090), (14, 9144350), (20, 6401045), (25, 5120836), (28, 4572175), (35, 3657740), (50, 2560418), (70, 1828870), (100, 1280209), (140, 914435), (175, 731548), (350, 365774), (700, 182887)]