20091224

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{81013}}^1$

素因数の和:81050

約数の個数: 16

約数和(自身を含む): 38886720

約数和(自身を除く): 18795496

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 81013, 162026, 324052, 648104, 2511403, 5022806, 10045612, 20091224]

約数ペア:

[(1, 20091224), (2, 10045612), (4, 5022806), (8, 2511403), (31, 648104), (62, 324052), (124, 162026), (248, 81013)]