640355040

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{433}}^1$

素因数の和:546

約数の個数: 288

約数和(自身を含む): 2388597120

約数和(自身を除く): 1748242080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 79, 80, 90, 96, 104, 117, 120, 130, 144, 156, 158, 160, 180, 195, 208, 234, 237, 240, 260, 288, 312, 316, 360, 390, 395, 416, 433, 468, 474, 480, 520, 585, 624, 632, 711, 720, 780, 790, 866, 936, 948, 1027, 1040, 1170, 1185, 1248, 1264, 1299, 1422, 1440, 1560, 1580, 1732, 1872, 1896, 2054, 2080, 2165, 2340, 2370, 2528, 2598, 2844, 3081, 3120, 3160, 3464, 3555, 3744, 3792, 3897, 4108, 4330, 4680, 4740, 5135, 5196, 5629, 5688, 6162, 6240, 6320, 6495, 6928, 7110, 7584, 7794, 8216, 8660, 9243, 9360, 9480, 10270, 10392, 11258, 11376, 12324, 12640, 12990, 13856, 14220, 15405, 15588, 16432, 16887, 17320, 18486, 18720, 18960, 19485, 20540, 20784, 22516, 22752, 24648, 25980, 28145, 28440, 30810, 31176, 32864, 33774, 34207, 34640, 36972, 37920, 38970, 41080, 41568, 45032, 46215, 49296, 50661, 51960, 56290, 56880, 61620, 62352, 67548, 68414, 69280, 73944, 77940, 82160, 84435, 90064, 92430, 98592, 101322, 102621, 103920, 112580, 113760, 123240, 124704, 135096, 136828, 147888, 155880, 164320, 168870, 171035, 180128, 184860, 202644, 205242, 207840, 225160, 246480, 253305, 270192, 273656, 295776, 307863, 311760, 337740, 342070, 369720, 405288, 410484, 444691, 450320, 492960, 506610, 513105, 540384, 547312, 615726, 623520, 675480, 684140, 739440, 810576, 820968, 889382, 900640, 1013220, 1026210, 1094624, 1231452, 1334073, 1350960, 1368280, 1478880, 1539315, 1621152, 1641936, 1778764, 2026440, 2052420, 2223455, 2462904, 2668146, 2701920, 2736560, 3078630, 3283872, 3557528, 4002219, 4052880, 4104840, 4446910, 4925808, 5336292, 5473120, 6157260, 6670365, 7115056, 8004438, 8105760, 8209680, 8893820, 9851616, 10672584, 12314520, 13340730, 14230112, 16008876, 16419360, 17787640, 20011095, 21345168, 24629040, 26681460, 32017752, 35575280, 40022190, 42690336, 49258080, 53362920, 64035504, 71150560, 80044380, 106725840, 128071008, 160088760, 213451680, 320177520, 640355040]

約数ペア:

[(1, 640355040), (2, 320177520), (3, 213451680), (4, 160088760), (5, 128071008), (6, 106725840), (8, 80044380), (9, 71150560), (10, 64035504), (12, 53362920), (13, 49258080), (15, 42690336), (16, 40022190), (18, 35575280), (20, 32017752), (24, 26681460), (26, 24629040), (30, 21345168), (32, 20011095), (36, 17787640), (39, 16419360), (40, 16008876), (45, 14230112), (48, 13340730), (52, 12314520), (60, 10672584), (65, 9851616), (72, 8893820), (78, 8209680), (79, 8105760), (80, 8004438), (90, 7115056), (96, 6670365), (104, 6157260), (117, 5473120), (120, 5336292), (130, 4925808), (144, 4446910), (156, 4104840), (158, 4052880), (160, 4002219), (180, 3557528), (195, 3283872), (208, 3078630), (234, 2736560), (237, 2701920), (240, 2668146), (260, 2462904), (288, 2223455), (312, 2052420), (316, 2026440), (360, 1778764), (390, 1641936), (395, 1621152), (416, 1539315), (433, 1478880), (468, 1368280), (474, 1350960), (480, 1334073), (520, 1231452), (585, 1094624), (624, 1026210), (632, 1013220), (711, 900640), (720, 889382), (780, 820968), (790, 810576), (866, 739440), (936, 684140), (948, 675480), (1027, 623520), (1040, 615726), (1170, 547312), (1185, 540384), (1248, 513105), (1264, 506610), (1299, 492960), (1422, 450320), (1440, 444691), (1560, 410484), (1580, 405288), (1732, 369720), (1872, 342070), (1896, 337740), (2054, 311760), (2080, 307863), (2165, 295776), (2340, 273656), (2370, 270192), (2528, 253305), (2598, 246480), (2844, 225160), (3081, 207840), (3120, 205242), (3160, 202644), (3464, 184860), (3555, 180128), (3744, 171035), (3792, 168870), (3897, 164320), (4108, 155880), (4330, 147888), (4680, 136828), (4740, 135096), (5135, 124704), (5196, 123240), (5629, 113760), (5688, 112580), (6162, 103920), (6240, 102621), (6320, 101322), (6495, 98592), (6928, 92430), (7110, 90064), (7584, 84435), (7794, 82160), (8216, 77940), (8660, 73944), (9243, 69280), (9360, 68414), (9480, 67548), (10270, 62352), (10392, 61620), (11258, 56880), (11376, 56290), (12324, 51960), (12640, 50661), (12990, 49296), (13856, 46215), (14220, 45032), (15405, 41568), (15588, 41080), (16432, 38970), (16887, 37920), (17320, 36972), (18486, 34640), (18720, 34207), (18960, 33774), (19485, 32864), (20540, 31176), (20784, 30810), (22516, 28440), (22752, 28145), (24648, 25980)]