256508910

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{135719}}^1$

素因数の和:135742

約数の個数: 64

約数和(自身を含む): 781747200

約数和(自身を除く): 525238290

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 135719, 271438, 407157, 678595, 814314, 950033, 1221471, 1357190, 1900066, 2035785, 2442942, 2850099, 3664413, 4071570, 4750165, 5700198, 6107355, 7328826, 8550297, 9500330, 12214710, 14250495, 17100594, 18322065, 25650891, 28500990, 36644130, 42751485, 51301782, 85502970, 128254455, 256508910]

約数ペア:

[(1, 256508910), (2, 128254455), (3, 85502970), (5, 51301782), (6, 42751485), (7, 36644130), (9, 28500990), (10, 25650891), (14, 18322065), (15, 17100594), (18, 14250495), (21, 12214710), (27, 9500330), (30, 8550297), (35, 7328826), (42, 6107355), (45, 5700198), (54, 4750165), (63, 4071570), (70, 3664413), (90, 2850099), (105, 2442942), (126, 2035785), (135, 1900066), (189, 1357190), (210, 1221471), (270, 950033), (315, 814314), (378, 678595), (630, 407157), (945, 271438), (1890, 135719)]