205787520

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{11909}}^1$

素因数の和:11937

約数の個数: 128

約数和(自身を含む): 728892000

約数和(自身を除く): 523104480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 864, 960, 1080, 1152, 1440, 1728, 1920, 2160, 2880, 3456, 4320, 5760, 8640, 11909, 17280, 23818, 35727, 47636, 59545, 71454, 95272, 107181, 119090, 142908, 178635, 190544, 214362, 238180, 285816, 321543, 357270, 381088, 428724, 476360, 535905, 571632, 643086, 714540, 762176, 857448, 952720, 1071810, 1143264, 1286172, 1429080, 1524352, 1607715, 1714896, 1905440, 2143620, 2286528, 2572344, 2858160, 3215430, 3429792, 3810880, 4287240, 4573056, 5144688, 5716320, 6430860, 6859584, 7621760, 8574480, 10289376, 11432640, 12861720, 13719168, 17148960, 20578752, 22865280, 25723440, 34297920, 41157504, 51446880, 68595840, 102893760, 205787520]

約数ペア:

[(1, 205787520), (2, 102893760), (3, 68595840), (4, 51446880), (5, 41157504), (6, 34297920), (8, 25723440), (9, 22865280), (10, 20578752), (12, 17148960), (15, 13719168), (16, 12861720), (18, 11432640), (20, 10289376), (24, 8574480), (27, 7621760), (30, 6859584), (32, 6430860), (36, 5716320), (40, 5144688), (45, 4573056), (48, 4287240), (54, 3810880), (60, 3429792), (64, 3215430), (72, 2858160), (80, 2572344), (90, 2286528), (96, 2143620), (108, 1905440), (120, 1714896), (128, 1607715), (135, 1524352), (144, 1429080), (160, 1286172), (180, 1143264), (192, 1071810), (216, 952720), (240, 857448), (270, 762176), (288, 714540), (320, 643086), (360, 571632), (384, 535905), (432, 476360), (480, 428724), (540, 381088), (576, 357270), (640, 321543), (720, 285816), (864, 238180), (960, 214362), (1080, 190544), (1152, 178635), (1440, 142908), (1728, 119090), (1920, 107181), (2160, 95272), (2880, 71454), (3456, 59545), (4320, 47636), (5760, 35727), (8640, 23818), (11909, 17280)]