1998889744

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{2905363}}^1$

素因数の和:2905414

約数の個数: 20

約数和(自身を含む): 3962916496

約数和(自身を除く): 1964026752

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 2905363, 5810726, 11621452, 23242904, 46485808, 124930609, 249861218, 499722436, 999444872, 1998889744]

約数ペア:

[(1, 1998889744), (2, 999444872), (4, 499722436), (8, 249861218), (16, 124930609), (43, 46485808), (86, 23242904), (172, 11621452), (344, 5810726), (688, 2905363)]