256659840

素因数分解:

$2^7\times 3^4\times 5^1\times {\mathrm{4951}}^1$

素因数の和:4982

約数の個数: 160

約数和(自身を含む): 916763760

約数和(自身を除く): 660103920

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, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 270, 288, 320, 324, 360, 384, 405, 432, 480, 540, 576, 640, 648, 720, 810, 864, 960, 1080, 1152, 1296, 1440, 1620, 1728, 1920, 2160, 2592, 2880, 3240, 3456, 4320, 4951, 5184, 5760, 6480, 8640, 9902, 10368, 12960, 14853, 17280, 19804, 24755, 25920, 29706, 39608, 44559, 49510, 51840, 59412, 74265, 79216, 89118, 99020, 118824, 133677, 148530, 158432, 178236, 198040, 222795, 237648, 267354, 297060, 316864, 356472, 396080, 401031, 445590, 475296, 534708, 594120, 633728, 668385, 712944, 792160, 802062, 891180, 950592, 1069416, 1188240, 1336770, 1425888, 1584320, 1604124, 1782360, 1901184, 2005155, 2138832, 2376480, 2673540, 2851776, 3168640, 3208248, 3564720, 4010310, 4277664, 4752960, 5347080, 5703552, 6416496, 7129440, 8020620, 8555328, 9505920, 10694160, 12832992, 14258880, 16041240, 17110656, 21388320, 25665984, 28517760, 32082480, 42776640, 51331968, 64164960, 85553280, 128329920, 256659840]

約数ペア:

[(1, 256659840), (2, 128329920), (3, 85553280), (4, 64164960), (5, 51331968), (6, 42776640), (8, 32082480), (9, 28517760), (10, 25665984), (12, 21388320), (15, 17110656), (16, 16041240), (18, 14258880), (20, 12832992), (24, 10694160), (27, 9505920), (30, 8555328), (32, 8020620), (36, 7129440), (40, 6416496), (45, 5703552), (48, 5347080), (54, 4752960), (60, 4277664), (64, 4010310), (72, 3564720), (80, 3208248), (81, 3168640), (90, 2851776), (96, 2673540), (108, 2376480), (120, 2138832), (128, 2005155), (135, 1901184), (144, 1782360), (160, 1604124), (162, 1584320), (180, 1425888), (192, 1336770), (216, 1188240), (240, 1069416), (270, 950592), (288, 891180), (320, 802062), (324, 792160), (360, 712944), (384, 668385), (405, 633728), (432, 594120), (480, 534708), (540, 475296), (576, 445590), (640, 401031), (648, 396080), (720, 356472), (810, 316864), (864, 297060), (960, 267354), (1080, 237648), (1152, 222795), (1296, 198040), (1440, 178236), (1620, 158432), (1728, 148530), (1920, 133677), (2160, 118824), (2592, 99020), (2880, 89118), (3240, 79216), (3456, 74265), (4320, 59412), (4951, 51840), (5184, 49510), (5760, 44559), (6480, 39608), (8640, 29706), (9902, 25920), (10368, 24755), (12960, 19804), (14853, 17280)]