390077961

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{479}}^1$

素因数の和:678

約数の個数: 64

約数和(自身を含む): 679526400

約数和(自身を除く): 289448439

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 157, 247, 273, 399, 471, 479, 741, 1099, 1437, 1729, 2041, 2983, 3297, 3353, 5187, 6123, 6227, 8949, 9101, 10059, 14287, 18681, 20881, 27303, 38779, 42861, 43589, 62643, 63707, 75203, 116337, 118313, 130767, 191121, 225609, 271453, 354939, 526421, 814359, 828191, 977639, 1428857, 1579263, 2484573, 2932917, 4286571, 6843473, 10001999, 18575141, 20530419, 30005997, 55725423, 130025987, 390077961]

約数ペア:

[(1, 390077961), (3, 130025987), (7, 55725423), (13, 30005997), (19, 20530419), (21, 18575141), (39, 10001999), (57, 6843473), (91, 4286571), (133, 2932917), (157, 2484573), (247, 1579263), (273, 1428857), (399, 977639), (471, 828191), (479, 814359), (741, 526421), (1099, 354939), (1437, 271453), (1729, 225609), (2041, 191121), (2983, 130767), (3297, 118313), (3353, 116337), (5187, 75203), (6123, 63707), (6227, 62643), (8949, 43589), (9101, 42861), (10059, 38779), (14287, 27303), (18681, 20881)]