280001280

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:187

約数の個数: 288

約数和(自身を含む): 988968960

約数和(自身を除く): 708967680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 71, 78, 79, 80, 96, 104, 120, 128, 130, 142, 156, 158, 160, 192, 195, 208, 213, 237, 240, 256, 260, 284, 312, 316, 320, 355, 384, 390, 395, 416, 426, 474, 480, 520, 568, 624, 632, 640, 710, 768, 780, 790, 832, 852, 923, 948, 960, 1027, 1040, 1065, 1136, 1185, 1248, 1264, 1280, 1420, 1560, 1580, 1664, 1704, 1846, 1896, 1920, 2054, 2080, 2130, 2272, 2370, 2496, 2528, 2769, 2840, 3081, 3120, 3160, 3328, 3408, 3692, 3792, 3840, 4108, 4160, 4260, 4544, 4615, 4740, 4992, 5056, 5135, 5538, 5609, 5680, 6162, 6240, 6320, 6816, 7384, 7584, 8216, 8320, 8520, 9088, 9230, 9480, 9984, 10112, 10270, 11076, 11218, 11360, 12324, 12480, 12640, 13632, 13845, 14768, 15168, 15405, 16432, 16640, 16827, 17040, 18176, 18460, 18960, 20224, 20540, 22152, 22436, 22720, 24648, 24960, 25280, 27264, 27690, 28045, 29536, 30336, 30810, 32864, 33654, 34080, 36920, 37920, 41080, 44304, 44872, 45440, 49296, 49920, 50560, 54528, 55380, 56090, 59072, 60672, 61620, 65728, 67308, 68160, 72917, 73840, 75840, 82160, 84135, 88608, 89744, 90880, 98592, 101120, 110760, 112180, 118144, 123240, 131456, 134616, 136320, 145834, 147680, 151680, 164320, 168270, 177216, 179488, 197184, 218751, 221520, 224360, 236288, 246480, 262912, 269232, 272640, 291668, 295360, 303360, 328640, 336540, 354432, 358976, 364585, 394368, 437502, 443040, 448720, 492960, 538464, 583336, 590720, 657280, 673080, 708864, 717952, 729170, 788736, 875004, 886080, 897440, 985920, 1076928, 1093755, 1166672, 1181440, 1314560, 1346160, 1435904, 1458340, 1750008, 1772160, 1794880, 1971840, 2153856, 2187510, 2333344, 2692320, 2916680, 3500016, 3544320, 3589760, 3943680, 4307712, 4375020, 4666688, 5384640, 5833360, 7000032, 7179520, 8750040, 9333376, 10769280, 11666720, 14000064, 17500080, 18666752, 21538560, 23333440, 28000128, 35000160, 46666880, 56000256, 70000320, 93333760, 140000640, 280001280]

約数ペア:

[(1, 280001280), (2, 140000640), (3, 93333760), (4, 70000320), (5, 56000256), (6, 46666880), (8, 35000160), (10, 28000128), (12, 23333440), (13, 21538560), (15, 18666752), (16, 17500080), (20, 14000064), (24, 11666720), (26, 10769280), (30, 9333376), (32, 8750040), (39, 7179520), (40, 7000032), (48, 5833360), (52, 5384640), (60, 4666688), (64, 4375020), (65, 4307712), (71, 3943680), (78, 3589760), (79, 3544320), (80, 3500016), (96, 2916680), (104, 2692320), (120, 2333344), (128, 2187510), (130, 2153856), (142, 1971840), (156, 1794880), (158, 1772160), (160, 1750008), (192, 1458340), (195, 1435904), (208, 1346160), (213, 1314560), (237, 1181440), (240, 1166672), (256, 1093755), (260, 1076928), (284, 985920), (312, 897440), (316, 886080), (320, 875004), (355, 788736), (384, 729170), (390, 717952), (395, 708864), (416, 673080), (426, 657280), (474, 590720), (480, 583336), (520, 538464), (568, 492960), (624, 448720), (632, 443040), (640, 437502), (710, 394368), (768, 364585), (780, 358976), (790, 354432), (832, 336540), (852, 328640), (923, 303360), (948, 295360), (960, 291668), (1027, 272640), (1040, 269232), (1065, 262912), (1136, 246480), (1185, 236288), (1248, 224360), (1264, 221520), (1280, 218751), (1420, 197184), (1560, 179488), (1580, 177216), (1664, 168270), (1704, 164320), (1846, 151680), (1896, 147680), (1920, 145834), (2054, 136320), (2080, 134616), (2130, 131456), (2272, 123240), (2370, 118144), (2496, 112180), (2528, 110760), (2769, 101120), (2840, 98592), (3081, 90880), (3120, 89744), (3160, 88608), (3328, 84135), (3408, 82160), (3692, 75840), (3792, 73840), (3840, 72917), (4108, 68160), (4160, 67308), (4260, 65728), (4544, 61620), (4615, 60672), (4740, 59072), (4992, 56090), (5056, 55380), (5135, 54528), (5538, 50560), (5609, 49920), (5680, 49296), (6162, 45440), (6240, 44872), (6320, 44304), (6816, 41080), (7384, 37920), (7584, 36920), (8216, 34080), (8320, 33654), (8520, 32864), (9088, 30810), (9230, 30336), (9480, 29536), (9984, 28045), (10112, 27690), (10270, 27264), (11076, 25280), (11218, 24960), (11360, 24648), (12324, 22720), (12480, 22436), (12640, 22152), (13632, 20540), (13845, 20224), (14768, 18960), (15168, 18460), (15405, 18176), (16432, 17040), (16640, 16827)]