256184640

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:374

約数の個数: 224

約数和(自身を含む): 914400000

約数和(自身を除く): 658215360

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, 135, 144, 149, 160, 180, 192, 199, 216, 240, 270, 288, 298, 320, 360, 398, 432, 447, 480, 540, 576, 596, 597, 720, 745, 796, 864, 894, 960, 995, 1080, 1192, 1194, 1341, 1440, 1490, 1592, 1728, 1788, 1791, 1990, 2160, 2235, 2384, 2388, 2682, 2880, 2980, 2985, 3184, 3576, 3582, 3980, 4023, 4320, 4470, 4768, 4776, 5364, 5373, 5960, 5970, 6368, 6705, 7152, 7164, 7960, 8046, 8640, 8940, 8955, 9536, 9552, 10728, 10746, 11920, 11940, 12736, 13410, 14304, 14328, 15920, 16092, 17880, 17910, 19104, 20115, 21456, 21492, 23840, 23880, 26820, 26865, 28608, 28656, 29651, 31840, 32184, 35760, 35820, 38208, 40230, 42912, 42984, 47680, 47760, 53640, 53730, 57312, 59302, 63680, 64368, 71520, 71640, 80460, 85824, 85968, 88953, 95520, 107280, 107460, 114624, 118604, 128736, 143040, 143280, 148255, 160920, 171936, 177906, 191040, 214560, 214920, 237208, 257472, 266859, 286560, 296510, 321840, 343872, 355812, 429120, 429840, 444765, 474416, 533718, 573120, 593020, 643680, 711624, 800577, 859680, 889530, 948832, 1067436, 1186040, 1287360, 1334295, 1423248, 1601154, 1719360, 1779060, 1897664, 2134872, 2372080, 2668590, 2846496, 3202308, 3558120, 4002885, 4269744, 4744160, 5337180, 5692992, 6404616, 7116240, 8005770, 8539488, 9488320, 10674360, 12809232, 14232480, 16011540, 17078976, 21348720, 25618464, 28464960, 32023080, 42697440, 51236928, 64046160, 85394880, 128092320, 256184640]

約数ペア:

[(1, 256184640), (2, 128092320), (3, 85394880), (4, 64046160), (5, 51236928), (6, 42697440), (8, 32023080), (9, 28464960), (10, 25618464), (12, 21348720), (15, 17078976), (16, 16011540), (18, 14232480), (20, 12809232), (24, 10674360), (27, 9488320), (30, 8539488), (32, 8005770), (36, 7116240), (40, 6404616), (45, 5692992), (48, 5337180), (54, 4744160), (60, 4269744), (64, 4002885), (72, 3558120), (80, 3202308), (90, 2846496), (96, 2668590), (108, 2372080), (120, 2134872), (135, 1897664), (144, 1779060), (149, 1719360), (160, 1601154), (180, 1423248), (192, 1334295), (199, 1287360), (216, 1186040), (240, 1067436), (270, 948832), (288, 889530), (298, 859680), (320, 800577), (360, 711624), (398, 643680), (432, 593020), (447, 573120), (480, 533718), (540, 474416), (576, 444765), (596, 429840), (597, 429120), (720, 355812), (745, 343872), (796, 321840), (864, 296510), (894, 286560), (960, 266859), (995, 257472), (1080, 237208), (1192, 214920), (1194, 214560), (1341, 191040), (1440, 177906), (1490, 171936), (1592, 160920), (1728, 148255), (1788, 143280), (1791, 143040), (1990, 128736), (2160, 118604), (2235, 114624), (2384, 107460), (2388, 107280), (2682, 95520), (2880, 88953), (2980, 85968), (2985, 85824), (3184, 80460), (3576, 71640), (3582, 71520), (3980, 64368), (4023, 63680), (4320, 59302), (4470, 57312), (4768, 53730), (4776, 53640), (5364, 47760), (5373, 47680), (5960, 42984), (5970, 42912), (6368, 40230), (6705, 38208), (7152, 35820), (7164, 35760), (7960, 32184), (8046, 31840), (8640, 29651), (8940, 28656), (8955, 28608), (9536, 26865), (9552, 26820), (10728, 23880), (10746, 23840), (11920, 21492), (11940, 21456), (12736, 20115), (13410, 19104), (14304, 17910), (14328, 17880), (15920, 16092)]