251392

素因数分解:

$2^9\times {\mathrm{491}}^1$

素因数の和:509

約数の個数: 20

約数和(自身を含む): 503316

約数和(自身を除く): 251924

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 491, 512, 982, 1964, 3928, 7856, 15712, 31424, 62848, 125696, 251392]

約数ペア:

[(1, 251392), (2, 125696), (4, 62848), (8, 31424), (16, 15712), (32, 7856), (64, 3928), (128, 1964), (256, 982), (491, 512)]