12748220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{6311}}^1$

素因数の和:6421

約数の個数: 24

約数和(自身を含む): 27040608

約数和(自身を除く): 14292388

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 6311, 12622, 25244, 31555, 63110, 126220, 637411, 1274822, 2549644, 3187055, 6374110, 12748220]

約数ペア:

[(1, 12748220), (2, 6374110), (4, 3187055), (5, 2549644), (10, 1274822), (20, 637411), (101, 126220), (202, 63110), (404, 31555), (505, 25244), (1010, 12622), (2020, 6311)]