256403418

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{619}}^1$

素因数の和:803

約数の個数: 64

約数和(自身を含む): 565678080

約数和(自身を除く): 309274662

約数列:

[1, 2, 3, 6, 17, 31, 34, 51, 62, 93, 102, 131, 186, 262, 393, 527, 619, 786, 1054, 1238, 1581, 1857, 2227, 3162, 3714, 4061, 4454, 6681, 8122, 10523, 12183, 13362, 19189, 21046, 24366, 31569, 38378, 57567, 63138, 69037, 81089, 115134, 138074, 162178, 207111, 243267, 326213, 414222, 486534, 652426, 978639, 1378513, 1957278, 2513759, 2757026, 4135539, 5027518, 7541277, 8271078, 15082554, 42733903, 85467806, 128201709, 256403418]

約数ペア:

[(1, 256403418), (2, 128201709), (3, 85467806), (6, 42733903), (17, 15082554), (31, 8271078), (34, 7541277), (51, 5027518), (62, 4135539), (93, 2757026), (102, 2513759), (131, 1957278), (186, 1378513), (262, 978639), (393, 652426), (527, 486534), (619, 414222), (786, 326213), (1054, 243267), (1238, 207111), (1581, 162178), (1857, 138074), (2227, 115134), (3162, 81089), (3714, 69037), (4061, 63138), (4454, 57567), (6681, 38378), (8122, 31569), (10523, 24366), (12183, 21046), (13362, 19189)]