281999520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{937}}^1$

素因数の和:988

約数の個数: 288

約数和(自身を含む): 1106239680

約数和(自身を除く): 824240160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 19, 20, 22, 24, 30, 32, 33, 36, 38, 40, 44, 45, 48, 55, 57, 60, 66, 72, 76, 80, 88, 90, 95, 96, 99, 110, 114, 120, 132, 144, 152, 160, 165, 171, 176, 180, 190, 198, 209, 220, 228, 240, 264, 285, 288, 304, 330, 342, 352, 360, 380, 396, 418, 440, 456, 480, 495, 528, 570, 608, 627, 660, 684, 720, 760, 792, 836, 855, 880, 912, 937, 990, 1045, 1056, 1140, 1254, 1320, 1368, 1440, 1520, 1584, 1672, 1710, 1760, 1824, 1874, 1881, 1980, 2090, 2280, 2508, 2640, 2736, 2811, 3040, 3135, 3168, 3344, 3420, 3748, 3762, 3960, 4180, 4560, 4685, 5016, 5280, 5472, 5622, 6270, 6688, 6840, 7496, 7524, 7920, 8360, 8433, 9120, 9370, 9405, 10032, 10307, 11244, 12540, 13680, 14055, 14992, 15048, 15840, 16720, 16866, 17803, 18740, 18810, 20064, 20614, 22488, 25080, 27360, 28110, 29984, 30096, 30921, 33440, 33732, 35606, 37480, 37620, 41228, 42165, 44976, 50160, 51535, 53409, 56220, 60192, 61842, 67464, 71212, 74960, 75240, 82456, 84330, 89015, 89952, 92763, 100320, 103070, 106818, 112440, 123684, 134928, 142424, 149920, 150480, 154605, 160227, 164912, 168660, 178030, 185526, 195833, 206140, 213636, 224880, 247368, 267045, 269856, 284848, 300960, 309210, 320454, 329824, 337320, 356060, 371052, 391666, 412280, 427272, 449760, 463815, 494736, 534090, 569696, 587499, 618420, 640908, 674640, 712120, 742104, 783332, 801135, 824560, 854544, 927630, 979165, 989472, 1068180, 1174998, 1236840, 1281816, 1349280, 1424240, 1484208, 1566664, 1602270, 1649120, 1709088, 1762497, 1855260, 1958330, 2136360, 2349996, 2473680, 2563632, 2848480, 2937495, 2968416, 3133328, 3204540, 3524994, 3710520, 3916660, 4272720, 4699992, 4947360, 5127264, 5874990, 6266656, 6409080, 7049988, 7421040, 7833320, 8545440, 8812485, 9399984, 11749980, 12818160, 14099976, 14842080, 15666640, 17624970, 18799968, 23499960, 25636320, 28199952, 31333280, 35249940, 46999920, 56399904, 70499880, 93999840, 140999760, 281999520]

約数ペア:

[(1, 281999520), (2, 140999760), (3, 93999840), (4, 70499880), (5, 56399904), (6, 46999920), (8, 35249940), (9, 31333280), (10, 28199952), (11, 25636320), (12, 23499960), (15, 18799968), (16, 17624970), (18, 15666640), (19, 14842080), (20, 14099976), (22, 12818160), (24, 11749980), (30, 9399984), (32, 8812485), (33, 8545440), (36, 7833320), (38, 7421040), (40, 7049988), (44, 6409080), (45, 6266656), (48, 5874990), (55, 5127264), (57, 4947360), (60, 4699992), (66, 4272720), (72, 3916660), (76, 3710520), (80, 3524994), (88, 3204540), (90, 3133328), (95, 2968416), (96, 2937495), (99, 2848480), (110, 2563632), (114, 2473680), (120, 2349996), (132, 2136360), (144, 1958330), (152, 1855260), (160, 1762497), (165, 1709088), (171, 1649120), (176, 1602270), (180, 1566664), (190, 1484208), (198, 1424240), (209, 1349280), (220, 1281816), (228, 1236840), (240, 1174998), (264, 1068180), (285, 989472), (288, 979165), (304, 927630), (330, 854544), (342, 824560), (352, 801135), (360, 783332), (380, 742104), (396, 712120), (418, 674640), (440, 640908), (456, 618420), (480, 587499), (495, 569696), (528, 534090), (570, 494736), (608, 463815), (627, 449760), (660, 427272), (684, 412280), (720, 391666), (760, 371052), (792, 356060), (836, 337320), (855, 329824), (880, 320454), (912, 309210), (937, 300960), (990, 284848), (1045, 269856), (1056, 267045), (1140, 247368), (1254, 224880), (1320, 213636), (1368, 206140), (1440, 195833), (1520, 185526), (1584, 178030), (1672, 168660), (1710, 164912), (1760, 160227), (1824, 154605), (1874, 150480), (1881, 149920), (1980, 142424), (2090, 134928), (2280, 123684), (2508, 112440), (2640, 106818), (2736, 103070), (2811, 100320), (3040, 92763), (3135, 89952), (3168, 89015), (3344, 84330), (3420, 82456), (3748, 75240), (3762, 74960), (3960, 71212), (4180, 67464), (4560, 61842), (4685, 60192), (5016, 56220), (5280, 53409), (5472, 51535), (5622, 50160), (6270, 44976), (6688, 42165), (6840, 41228), (7496, 37620), (7524, 37480), (7920, 35606), (8360, 33732), (8433, 33440), (9120, 30921), (9370, 30096), (9405, 29984), (10032, 28110), (10307, 27360), (11244, 25080), (12540, 22488), (13680, 20614), (14055, 20064), (14992, 18810), (15048, 18740), (15840, 17803), (16720, 16866)]