255611520

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:447

約数の個数: 192

約数和(自身を含む): 891072000

約数和(自身を除く): 635460480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 199, 223, 240, 288, 320, 360, 384, 398, 446, 480, 576, 597, 640, 669, 720, 796, 892, 960, 995, 1115, 1152, 1194, 1338, 1440, 1592, 1784, 1791, 1920, 1990, 2007, 2230, 2388, 2676, 2880, 2985, 3184, 3345, 3568, 3582, 3980, 4014, 4460, 4776, 5352, 5760, 5970, 6368, 6690, 7136, 7164, 7960, 8028, 8920, 8955, 9552, 10035, 10704, 11940, 12736, 13380, 14272, 14328, 15920, 16056, 17840, 17910, 19104, 20070, 21408, 23880, 25472, 26760, 28544, 28656, 31840, 32112, 35680, 35820, 38208, 40140, 42816, 44377, 47760, 53520, 57312, 63680, 64224, 71360, 71640, 76416, 80280, 85632, 88754, 95520, 107040, 114624, 127360, 128448, 133131, 142720, 143280, 160560, 177508, 191040, 214080, 221885, 229248, 256896, 266262, 286560, 321120, 355016, 382080, 399393, 428160, 443770, 532524, 573120, 642240, 665655, 710032, 798786, 887540, 1065048, 1146240, 1284480, 1331310, 1420064, 1597572, 1775080, 1996965, 2130096, 2662620, 2840128, 3195144, 3550160, 3993930, 4260192, 5325240, 5680256, 6390288, 7100320, 7987860, 8520384, 10650480, 12780576, 14200640, 15975720, 17040768, 21300960, 25561152, 28401280, 31951440, 42601920, 51122304, 63902880, 85203840, 127805760, 255611520]

約数ペア:

[(1, 255611520), (2, 127805760), (3, 85203840), (4, 63902880), (5, 51122304), (6, 42601920), (8, 31951440), (9, 28401280), (10, 25561152), (12, 21300960), (15, 17040768), (16, 15975720), (18, 14200640), (20, 12780576), (24, 10650480), (30, 8520384), (32, 7987860), (36, 7100320), (40, 6390288), (45, 5680256), (48, 5325240), (60, 4260192), (64, 3993930), (72, 3550160), (80, 3195144), (90, 2840128), (96, 2662620), (120, 2130096), (128, 1996965), (144, 1775080), (160, 1597572), (180, 1420064), (192, 1331310), (199, 1284480), (223, 1146240), (240, 1065048), (288, 887540), (320, 798786), (360, 710032), (384, 665655), (398, 642240), (446, 573120), (480, 532524), (576, 443770), (597, 428160), (640, 399393), (669, 382080), (720, 355016), (796, 321120), (892, 286560), (960, 266262), (995, 256896), (1115, 229248), (1152, 221885), (1194, 214080), (1338, 191040), (1440, 177508), (1592, 160560), (1784, 143280), (1791, 142720), (1920, 133131), (1990, 128448), (2007, 127360), (2230, 114624), (2388, 107040), (2676, 95520), (2880, 88754), (2985, 85632), (3184, 80280), (3345, 76416), (3568, 71640), (3582, 71360), (3980, 64224), (4014, 63680), (4460, 57312), (4776, 53520), (5352, 47760), (5760, 44377), (5970, 42816), (6368, 40140), (6690, 38208), (7136, 35820), (7164, 35680), (7960, 32112), (8028, 31840), (8920, 28656), (8955, 28544), (9552, 26760), (10035, 25472), (10704, 23880), (11940, 21408), (12736, 20070), (13380, 19104), (14272, 17910), (14328, 17840), (15920, 16056)]