1219780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{859}}^1$

素因数の和:939

約数の個数: 24

約数和(自身を含む): 2600640

約数和(自身を除く): 1380860

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 859, 1420, 1718, 3436, 4295, 8590, 17180, 60989, 121978, 243956, 304945, 609890, 1219780]

約数ペア:

[(1, 1219780), (2, 609890), (4, 304945), (5, 243956), (10, 121978), (20, 60989), (71, 17180), (142, 8590), (284, 4295), (355, 3436), (710, 1718), (859, 1420)]