398538496

素因数分解:

$2^8\times {\mathrm{1556791}}^1$

素因数の和:1556807

約数の個数: 18

約数和(自身を含む): 795520712

約数和(自身を除く): 396982216

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 1556791, 3113582, 6227164, 12454328, 24908656, 49817312, 99634624, 199269248, 398538496]

約数ペア:

[(1, 398538496), (2, 199269248), (4, 99634624), (8, 49817312), (16, 24908656), (32, 12454328), (64, 6227164), (128, 3113582), (256, 1556791)]