256543268

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{431}}^1\times {\mathrm{2221}}^1$

素因数の和:2723

約数の個数: 24

約数和(自身を含む): 456914304

約数和(自身を除く): 200371036

約数列:

[1, 2, 4, 67, 134, 268, 431, 862, 1724, 2221, 4442, 8884, 28877, 57754, 115508, 148807, 297614, 595228, 957251, 1914502, 3829004, 64135817, 128271634, 256543268]

約数ペア:

[(1, 256543268), (2, 128271634), (4, 64135817), (67, 3829004), (134, 1914502), (268, 957251), (431, 595228), (862, 297614), (1724, 148807), (2221, 115508), (4442, 57754), (8884, 28877)]