90290900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{128987}}^1$

素因数の和:129008

約数の個数: 36

約数和(自身を含む): 223923168

約数和(自身を除く): 133632268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 128987, 257974, 515948, 644935, 902909, 1289870, 1805818, 2579740, 3224675, 3611636, 4514545, 6449350, 9029090, 12898700, 18058180, 22572725, 45145450, 90290900]

約数ペア:

[(1, 90290900), (2, 45145450), (4, 22572725), (5, 18058180), (7, 12898700), (10, 9029090), (14, 6449350), (20, 4514545), (25, 3611636), (28, 3224675), (35, 2579740), (50, 1805818), (70, 1289870), (100, 902909), (140, 644935), (175, 515948), (350, 257974), (700, 128987)]