25581004

素因数分解:

$2^2\times {\mathrm{139}}^2\times {\mathrm{331}}^1$

素因数の和:613

約数の個数: 18

約数和(自身を含む): 45227364

約数和(自身を除く): 19646360

約数列:

[1, 2, 4, 139, 278, 331, 556, 662, 1324, 19321, 38642, 46009, 77284, 92018, 184036, 6395251, 12790502, 25581004]

約数ペア:

[(1, 25581004), (2, 12790502), (4, 6395251), (139, 184036), (278, 92018), (331, 77284), (556, 46009), (662, 38642), (1324, 19321)]