256207225

素因数分解:

$5^2\times {\mathrm{109}}^1\times {\mathrm{167}}^1\times {\mathrm{563}}^1$

素因数の和:849

約数の個数: 24

約数和(自身を含む): 323104320

約数和(自身を除く): 66897095

約数列:

[1, 5, 25, 109, 167, 545, 563, 835, 2725, 2815, 4175, 14075, 18203, 61367, 91015, 94021, 306835, 455075, 470105, 1534175, 2350525, 10248289, 51241445, 256207225]

約数ペア:

[(1, 256207225), (5, 51241445), (25, 10248289), (109, 2350525), (167, 1534175), (545, 470105), (563, 455075), (835, 306835), (2725, 94021), (2815, 91015), (4175, 61367), (14075, 18203)]