660809984

素因数分解:

$2^8\times {\mathrm{2581289}}^1$

素因数の和:2581305

約数の個数: 18

約数和(自身を含む): 1319039190

約数和(自身を除く): 658229206

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 2581289, 5162578, 10325156, 20650312, 41300624, 82601248, 165202496, 330404992, 660809984]

約数ペア:

[(1, 660809984), (2, 330404992), (4, 165202496), (8, 82601248), (16, 41300624), (32, 20650312), (64, 10325156), (128, 5162578), (256, 2581289)]