27980978

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1\times {\mathrm{401}}^1$

素因数の和:793

約数の個数: 16

約数和(自身を含む): 42547680

約数和(自身を除く): 14566702

約数列:

[1, 2, 139, 251, 278, 401, 502, 802, 34889, 55739, 69778, 100651, 111478, 201302, 13990489, 27980978]

約数ペア:

[(1, 27980978), (2, 13990489), (139, 201302), (251, 111478), (278, 100651), (401, 69778), (502, 55739), (802, 34889)]