2146220

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{449}}^1$

素因数の和:697

約数の個数: 24

約数和(自身を含む): 4536000

約数和(自身を除く): 2389780

約数列:

[1, 2, 4, 5, 10, 20, 239, 449, 478, 898, 956, 1195, 1796, 2245, 2390, 4490, 4780, 8980, 107311, 214622, 429244, 536555, 1073110, 2146220]

約数ペア:

[(1, 2146220), (2, 1073110), (4, 536555), (5, 429244), (10, 214622), (20, 107311), (239, 8980), (449, 4780), (478, 4490), (898, 2390), (956, 2245), (1195, 1796)]