81979638

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{2621}}^1$

素因数の和:3040

約数の個数: 32

約数和(自身を含む): 177079392

約数和(自身を除く): 95099754

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 401, 802, 1203, 2406, 2621, 5213, 5242, 7863, 10426, 15639, 15726, 31278, 34073, 68146, 102219, 204438, 1051021, 2102042, 3153063, 6306126, 13663273, 27326546, 40989819, 81979638]

約数ペア:

[(1, 81979638), (2, 40989819), (3, 27326546), (6, 13663273), (13, 6306126), (26, 3153063), (39, 2102042), (78, 1051021), (401, 204438), (802, 102219), (1203, 68146), (2406, 34073), (2621, 31278), (5213, 15726), (5242, 15639), (7863, 10426)]