1638963807

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{739}}^1$

素因数の和:888

約数の個数: 64

約数和(自身を含む): 2575910400

約数和(自身を除く): 936946593

約数列:

[1, 3, 13, 19, 39, 41, 57, 73, 123, 219, 247, 533, 739, 741, 779, 949, 1387, 1599, 2217, 2337, 2847, 2993, 4161, 8979, 9607, 10127, 14041, 18031, 28821, 30299, 30381, 38909, 42123, 53947, 54093, 56867, 90897, 116727, 161841, 170601, 182533, 393887, 547599, 575681, 701311, 739271, 1024993, 1181661, 1727043, 2103933, 2211827, 2217813, 3074979, 6635481, 7483853, 13324909, 22451559, 28753751, 39974727, 42024713, 86261253, 126074139, 546321269, 1638963807]

約数ペア:

[(1, 1638963807), (3, 546321269), (13, 126074139), (19, 86261253), (39, 42024713), (41, 39974727), (57, 28753751), (73, 22451559), (123, 13324909), (219, 7483853), (247, 6635481), (533, 3074979), (739, 2217813), (741, 2211827), (779, 2103933), (949, 1727043), (1387, 1181661), (1599, 1024993), (2217, 739271), (2337, 701311), (2847, 575681), (2993, 547599), (4161, 393887), (8979, 182533), (9607, 170601), (10127, 161841), (14041, 116727), (18031, 90897), (28821, 56867), (30299, 54093), (30381, 53947), (38909, 42123)]