256213418

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{563}}^1\times {\mathrm{1637}}^1$

素因数の和:2341

約数の個数: 16

約数和(自身を含む): 388009440

約数和(自身を除く): 131796022

約数列:

[1, 2, 139, 278, 563, 1126, 1637, 3274, 78257, 156514, 227543, 455086, 921631, 1843262, 128106709, 256213418]

約数ペア:

[(1, 256213418), (2, 128106709), (139, 1843262), (278, 921631), (563, 455086), (1126, 227543), (1637, 156514), (3274, 78257)]