78673257

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 128128000

約数和(自身を除く): 49454743

約数列:

[1, 3, 9, 13, 31, 39, 93, 109, 117, 199, 279, 327, 403, 597, 981, 1209, 1417, 1791, 2587, 3379, 3627, 4251, 6169, 7761, 10137, 12753, 18507, 21691, 23283, 30411, 43927, 55521, 65073, 80197, 131781, 195219, 240591, 281983, 395343, 672421, 721773, 845949, 2017263, 2537847, 6051789, 8741473, 26224419, 78673257]

約数ペア:

[(1, 78673257), (3, 26224419), (9, 8741473), (13, 6051789), (31, 2537847), (39, 2017263), (93, 845949), (109, 721773), (117, 672421), (199, 395343), (279, 281983), (327, 240591), (403, 195219), (597, 131781), (981, 80197), (1209, 65073), (1417, 55521), (1791, 43927), (2587, 30411), (3379, 23283), (3627, 21691), (4251, 18507), (6169, 12753), (7761, 10137)]