1979978

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:99

約数の個数: 64

約数和(自身を含む): 4257792

約数和(自身を除く): 2277814

約数列:

[1, 2, 7, 11, 13, 14, 22, 23, 26, 43, 46, 77, 86, 91, 143, 154, 161, 182, 253, 286, 299, 301, 322, 473, 506, 559, 598, 602, 946, 989, 1001, 1118, 1771, 1978, 2002, 2093, 3289, 3311, 3542, 3913, 4186, 6149, 6578, 6622, 6923, 7826, 10879, 12298, 12857, 13846, 21758, 23023, 25714, 43043, 46046, 76153, 86086, 89999, 141427, 152306, 179998, 282854, 989989, 1979978]

約数ペア:

[(1, 1979978), (2, 989989), (7, 282854), (11, 179998), (13, 152306), (14, 141427), (22, 89999), (23, 86086), (26, 76153), (43, 46046), (46, 43043), (77, 25714), (86, 23023), (91, 21758), (143, 13846), (154, 12857), (161, 12298), (182, 10879), (253, 7826), (286, 6923), (299, 6622), (301, 6578), (322, 6149), (473, 4186), (506, 3913), (559, 3542), (598, 3311), (602, 3289), (946, 2093), (989, 2002), (1001, 1978), (1118, 1771)]