81000556

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{1153}}^1$

素因数の和:1370

約数の個数: 48

約数和(自身を含む): 175518784

約数和(自身を除く): 94518228

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 193, 364, 386, 772, 1153, 1351, 2306, 2509, 2702, 4612, 5018, 5404, 8071, 10036, 14989, 16142, 17563, 29978, 32284, 35126, 59956, 70252, 104923, 209846, 222529, 419692, 445058, 890116, 1557703, 2892877, 3115406, 5785754, 6230812, 11571508, 20250139, 40500278, 81000556]

約数ペア:

[(1, 81000556), (2, 40500278), (4, 20250139), (7, 11571508), (13, 6230812), (14, 5785754), (26, 3115406), (28, 2892877), (52, 1557703), (91, 890116), (182, 445058), (193, 419692), (364, 222529), (386, 209846), (772, 104923), (1153, 70252), (1351, 59956), (2306, 35126), (2509, 32284), (2702, 29978), (4612, 17563), (5018, 16142), (5404, 14989), (8071, 10036)]