280352520

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{691}}^1$

素因数の和:745

約数の個数: 288

約数和(自身を含む): 1107587520

約数和(自身を除く): 827235000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 23, 24, 28, 30, 35, 36, 40, 42, 45, 46, 49, 56, 60, 63, 69, 70, 72, 84, 90, 92, 98, 105, 115, 120, 126, 138, 140, 147, 161, 168, 180, 184, 196, 207, 210, 230, 245, 252, 276, 280, 294, 315, 322, 345, 360, 392, 414, 420, 441, 460, 483, 490, 504, 552, 588, 630, 644, 690, 691, 735, 805, 828, 840, 882, 920, 966, 980, 1035, 1127, 1176, 1260, 1288, 1380, 1382, 1449, 1470, 1610, 1656, 1764, 1932, 1960, 2070, 2073, 2205, 2254, 2415, 2520, 2760, 2764, 2898, 2940, 3220, 3381, 3455, 3528, 3864, 4140, 4146, 4410, 4508, 4830, 4837, 5528, 5635, 5796, 5880, 6219, 6440, 6762, 6910, 7245, 8280, 8292, 8820, 9016, 9660, 9674, 10143, 10365, 11270, 11592, 12438, 13524, 13820, 14490, 14511, 15893, 16584, 16905, 17640, 19320, 19348, 20286, 20730, 22540, 24185, 24876, 27048, 27640, 28980, 29022, 31095, 31786, 33810, 33859, 38696, 40572, 41460, 43533, 45080, 47679, 48370, 49752, 50715, 57960, 58044, 62190, 63572, 67620, 67718, 72555, 79465, 81144, 82920, 87066, 95358, 96740, 101430, 101577, 111251, 116088, 124380, 127144, 135240, 135436, 143037, 145110, 158930, 169295, 174132, 190716, 193480, 202860, 203154, 217665, 222502, 238395, 248760, 270872, 286074, 290220, 304731, 317860, 333753, 338590, 348264, 381432, 405720, 406308, 435330, 445004, 476790, 507885, 556255, 572148, 580440, 609462, 635720, 667506, 677180, 715185, 778757, 812616, 870660, 890008, 953580, 1001259, 1015770, 1112510, 1144296, 1218924, 1335012, 1354360, 1430370, 1523655, 1557514, 1668765, 1741320, 1907160, 2002518, 2031540, 2225020, 2336271, 2437848, 2670024, 2860740, 3047310, 3115028, 3337530, 3893785, 4005036, 4063080, 4450040, 4672542, 5006295, 5721480, 6094620, 6230056, 6675060, 7008813, 7787570, 8010072, 9345084, 10012590, 11681355, 12189240, 13350120, 14017626, 15575140, 18690168, 20025180, 23362710, 28035252, 31150280, 35044065, 40050360, 46725420, 56070504, 70088130, 93450840, 140176260, 280352520]

約数ペア:

[(1, 280352520), (2, 140176260), (3, 93450840), (4, 70088130), (5, 56070504), (6, 46725420), (7, 40050360), (8, 35044065), (9, 31150280), (10, 28035252), (12, 23362710), (14, 20025180), (15, 18690168), (18, 15575140), (20, 14017626), (21, 13350120), (23, 12189240), (24, 11681355), (28, 10012590), (30, 9345084), (35, 8010072), (36, 7787570), (40, 7008813), (42, 6675060), (45, 6230056), (46, 6094620), (49, 5721480), (56, 5006295), (60, 4672542), (63, 4450040), (69, 4063080), (70, 4005036), (72, 3893785), (84, 3337530), (90, 3115028), (92, 3047310), (98, 2860740), (105, 2670024), (115, 2437848), (120, 2336271), (126, 2225020), (138, 2031540), (140, 2002518), (147, 1907160), (161, 1741320), (168, 1668765), (180, 1557514), (184, 1523655), (196, 1430370), (207, 1354360), (210, 1335012), (230, 1218924), (245, 1144296), (252, 1112510), (276, 1015770), (280, 1001259), (294, 953580), (315, 890008), (322, 870660), (345, 812616), (360, 778757), (392, 715185), (414, 677180), (420, 667506), (441, 635720), (460, 609462), (483, 580440), (490, 572148), (504, 556255), (552, 507885), (588, 476790), (630, 445004), (644, 435330), (690, 406308), (691, 405720), (735, 381432), (805, 348264), (828, 338590), (840, 333753), (882, 317860), (920, 304731), (966, 290220), (980, 286074), (1035, 270872), (1127, 248760), (1176, 238395), (1260, 222502), (1288, 217665), (1380, 203154), (1382, 202860), (1449, 193480), (1470, 190716), (1610, 174132), (1656, 169295), (1764, 158930), (1932, 145110), (1960, 143037), (2070, 135436), (2073, 135240), (2205, 127144), (2254, 124380), (2415, 116088), (2520, 111251), (2760, 101577), (2764, 101430), (2898, 96740), (2940, 95358), (3220, 87066), (3381, 82920), (3455, 81144), (3528, 79465), (3864, 72555), (4140, 67718), (4146, 67620), (4410, 63572), (4508, 62190), (4830, 58044), (4837, 57960), (5528, 50715), (5635, 49752), (5796, 48370), (5880, 47679), (6219, 45080), (6440, 43533), (6762, 41460), (6910, 40572), (7245, 38696), (8280, 33859), (8292, 33810), (8820, 31786), (9016, 31095), (9660, 29022), (9674, 28980), (10143, 27640), (10365, 27048), (11270, 24876), (11592, 24185), (12438, 22540), (13524, 20730), (13820, 20286), (14490, 19348), (14511, 19320), (15893, 17640), (16584, 16905)]