128738274

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1\times {\mathrm{211}}^1$

素因数の和:495

約数の個数: 64

約数和(自身を含む): 301209600

約数和(自身を除く): 172471326

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 73, 146, 199, 211, 219, 398, 422, 438, 511, 597, 633, 1022, 1194, 1266, 1393, 1477, 1533, 2786, 2954, 3066, 4179, 4431, 8358, 8862, 14527, 15403, 29054, 30806, 41989, 43581, 46209, 83978, 87162, 92418, 101689, 107821, 125967, 203378, 215642, 251934, 293923, 305067, 323463, 587846, 610134, 646926, 881769, 1763538, 3065197, 6130394, 9195591, 18391182, 21456379, 42912758, 64369137, 128738274]

約数ペア:

[(1, 128738274), (2, 64369137), (3, 42912758), (6, 21456379), (7, 18391182), (14, 9195591), (21, 6130394), (42, 3065197), (73, 1763538), (146, 881769), (199, 646926), (211, 610134), (219, 587846), (398, 323463), (422, 305067), (438, 293923), (511, 251934), (597, 215642), (633, 203378), (1022, 125967), (1194, 107821), (1266, 101689), (1393, 92418), (1477, 87162), (1533, 83978), (2786, 46209), (2954, 43581), (3066, 41989), (4179, 30806), (4431, 29054), (8358, 15403), (8862, 14527)]