487998620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{343661}}^1$

素因数の和:343741

約数の個数: 24

約数和(自身を含む): 1039233888

約数和(自身を除く): 551235268

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 343661, 687322, 1374644, 1718305, 3436610, 6873220, 24399931, 48799862, 97599724, 121999655, 243999310, 487998620]

約数ペア:

[(1, 487998620), (2, 243999310), (4, 121999655), (5, 97599724), (10, 48799862), (20, 24399931), (71, 6873220), (142, 3436610), (284, 1718305), (355, 1374644), (710, 687322), (1420, 343661)]