257816072

素因数分解:

$2^3\times {\mathrm{107}}^1\times {\mathrm{349}}^1\times {\mathrm{863}}^1$

素因数の和:1325

約数の個数: 32

約数和(自身を含む): 489888000

約数和(自身を除く): 232071928

約数列:

[1, 2, 4, 8, 107, 214, 349, 428, 698, 856, 863, 1396, 1726, 2792, 3452, 6904, 37343, 74686, 92341, 149372, 184682, 298744, 301187, 369364, 602374, 738728, 1204748, 2409496, 32227009, 64454018, 128908036, 257816072]

約数ペア:

[(1, 257816072), (2, 128908036), (4, 64454018), (8, 32227009), (107, 2409496), (214, 1204748), (349, 738728), (428, 602374), (698, 369364), (856, 301187), (863, 298744), (1396, 184682), (1726, 149372), (2792, 92341), (3452, 74686), (6904, 37343)]