256375680

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:293

約数の個数: 256

約数和(自身を含む): 910656000

約数和(自身を除く): 654280320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 61, 64, 66, 80, 88, 96, 110, 120, 122, 128, 132, 160, 165, 176, 183, 192, 199, 220, 240, 244, 264, 305, 320, 330, 352, 366, 384, 398, 440, 480, 488, 528, 597, 610, 640, 660, 671, 704, 732, 796, 880, 915, 960, 976, 995, 1056, 1194, 1220, 1320, 1342, 1408, 1464, 1592, 1760, 1830, 1920, 1952, 1990, 2013, 2112, 2189, 2388, 2440, 2640, 2684, 2928, 2985, 3184, 3355, 3520, 3660, 3904, 3980, 4026, 4224, 4378, 4776, 4880, 5280, 5368, 5856, 5970, 6368, 6567, 6710, 7040, 7320, 7808, 7960, 8052, 8756, 9552, 9760, 10065, 10560, 10736, 10945, 11712, 11940, 12139, 12736, 13134, 13420, 14640, 15920, 16104, 17512, 19104, 19520, 20130, 21120, 21472, 21890, 23424, 23880, 24278, 25472, 26268, 26840, 29280, 31840, 32208, 32835, 35024, 36417, 38208, 39040, 40260, 42944, 43780, 47760, 48556, 52536, 53680, 58560, 60695, 63680, 64416, 65670, 70048, 72834, 76416, 80520, 85888, 87560, 95520, 97112, 105072, 107360, 117120, 121390, 127360, 128832, 131340, 133529, 140096, 145668, 161040, 175120, 182085, 191040, 194224, 210144, 214720, 242780, 257664, 262680, 267058, 280192, 291336, 322080, 350240, 364170, 382080, 388448, 400587, 420288, 429440, 485560, 525360, 534116, 582672, 644160, 667645, 700480, 728340, 776896, 801174, 840576, 971120, 1050720, 1068232, 1165344, 1288320, 1335290, 1400960, 1456680, 1553792, 1602348, 1942240, 2002935, 2101440, 2136464, 2330688, 2670580, 2913360, 3204696, 3884480, 4005870, 4202880, 4272928, 4661376, 5341160, 5826720, 6409392, 7768960, 8011740, 8545856, 10682320, 11653440, 12818784, 16023480, 17091712, 21364640, 23306880, 25637568, 32046960, 42729280, 51275136, 64093920, 85458560, 128187840, 256375680]

約数ペア:

[(1, 256375680), (2, 128187840), (3, 85458560), (4, 64093920), (5, 51275136), (6, 42729280), (8, 32046960), (10, 25637568), (11, 23306880), (12, 21364640), (15, 17091712), (16, 16023480), (20, 12818784), (22, 11653440), (24, 10682320), (30, 8545856), (32, 8011740), (33, 7768960), (40, 6409392), (44, 5826720), (48, 5341160), (55, 4661376), (60, 4272928), (61, 4202880), (64, 4005870), (66, 3884480), (80, 3204696), (88, 2913360), (96, 2670580), (110, 2330688), (120, 2136464), (122, 2101440), (128, 2002935), (132, 1942240), (160, 1602348), (165, 1553792), (176, 1456680), (183, 1400960), (192, 1335290), (199, 1288320), (220, 1165344), (240, 1068232), (244, 1050720), (264, 971120), (305, 840576), (320, 801174), (330, 776896), (352, 728340), (366, 700480), (384, 667645), (398, 644160), (440, 582672), (480, 534116), (488, 525360), (528, 485560), (597, 429440), (610, 420288), (640, 400587), (660, 388448), (671, 382080), (704, 364170), (732, 350240), (796, 322080), (880, 291336), (915, 280192), (960, 267058), (976, 262680), (995, 257664), (1056, 242780), (1194, 214720), (1220, 210144), (1320, 194224), (1342, 191040), (1408, 182085), (1464, 175120), (1592, 161040), (1760, 145668), (1830, 140096), (1920, 133529), (1952, 131340), (1990, 128832), (2013, 127360), (2112, 121390), (2189, 117120), (2388, 107360), (2440, 105072), (2640, 97112), (2684, 95520), (2928, 87560), (2985, 85888), (3184, 80520), (3355, 76416), (3520, 72834), (3660, 70048), (3904, 65670), (3980, 64416), (4026, 63680), (4224, 60695), (4378, 58560), (4776, 53680), (4880, 52536), (5280, 48556), (5368, 47760), (5856, 43780), (5970, 42944), (6368, 40260), (6567, 39040), (6710, 38208), (7040, 36417), (7320, 35024), (7808, 32835), (7960, 32208), (8052, 31840), (8756, 29280), (9552, 26840), (9760, 26268), (10065, 25472), (10560, 24278), (10736, 23880), (10945, 23424), (11712, 21890), (11940, 21472), (12139, 21120), (12736, 20130), (13134, 19520), (13420, 19104), (14640, 17512), (15920, 16104)]