646430336

素因数分解:

$2^7\times {\mathrm{397}}^1\times {\mathrm{12721}}^1$

素因数の和:13132

約数の個数: 32

約数和(自身を含む): 1291155780

約数和(自身を除く): 644725444

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 397, 794, 1588, 3176, 6352, 12704, 12721, 25408, 25442, 50816, 50884, 101768, 203536, 407072, 814144, 1628288, 5050237, 10100474, 20200948, 40401896, 80803792, 161607584, 323215168, 646430336]

約数ペア:

[(1, 646430336), (2, 323215168), (4, 161607584), (8, 80803792), (16, 40401896), (32, 20200948), (64, 10100474), (128, 5050237), (397, 1628288), (794, 814144), (1588, 407072), (3176, 203536), (6352, 101768), (12704, 50884), (12721, 50816), (25408, 25442)]