139885970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{1998371}}^1$

素因数の和:1998385

約数の個数: 16

約数和(自身を含む): 287765568

約数和(自身を除く): 147879598

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 1998371, 3996742, 9991855, 13988597, 19983710, 27977194, 69942985, 139885970]

約数ペア:

[(1, 139885970), (2, 69942985), (5, 27977194), (7, 19983710), (10, 13988597), (14, 9991855), (35, 3996742), (70, 1998371)]