8889493880

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{321617}}^1$

素因数の和:322319

約数の個数: 32

約数和(自身を含む): 20030369040

約数和(自身を除く): 11140875160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 1382, 2764, 3455, 5528, 6910, 13820, 27640, 321617, 643234, 1286468, 1608085, 2572936, 3216170, 6432340, 12864680, 222237347, 444474694, 888949388, 1111186735, 1777898776, 2222373470, 4444746940, 8889493880]

約数ペア:

[(1, 8889493880), (2, 4444746940), (4, 2222373470), (5, 1777898776), (8, 1111186735), (10, 888949388), (20, 444474694), (40, 222237347), (691, 12864680), (1382, 6432340), (2764, 3216170), (3455, 2572936), (5528, 1608085), (6910, 1286468), (13820, 643234), (27640, 321617)]