257075280

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4637}}^1$

素因数の和:4674

約数の個数: 240

約数和(自身を含む): 1076609664

約数和(自身を除く): 819534384

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 48, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 88, 90, 99, 105, 110, 112, 120, 126, 132, 140, 144, 154, 165, 168, 176, 180, 198, 210, 220, 231, 240, 252, 264, 280, 308, 315, 330, 336, 360, 385, 396, 420, 440, 462, 495, 504, 528, 560, 616, 630, 660, 693, 720, 770, 792, 840, 880, 924, 990, 1008, 1155, 1232, 1260, 1320, 1386, 1540, 1584, 1680, 1848, 1980, 2310, 2520, 2640, 2772, 3080, 3465, 3696, 3960, 4620, 4637, 5040, 5544, 6160, 6930, 7920, 9240, 9274, 11088, 13860, 13911, 18480, 18548, 23185, 27720, 27822, 32459, 37096, 41733, 46370, 51007, 55440, 55644, 64918, 69555, 74192, 83466, 92740, 97377, 102014, 111288, 129836, 139110, 153021, 162295, 166932, 185480, 194754, 204028, 208665, 222576, 255035, 259672, 278220, 292131, 306042, 324590, 333864, 357049, 370960, 389508, 408056, 417330, 459063, 486885, 510070, 519344, 556440, 584262, 612084, 649180, 667728, 714098, 765105, 779016, 816112, 834660, 918126, 973770, 1020140, 1071147, 1112880, 1168524, 1224168, 1298360, 1428196, 1460655, 1530210, 1558032, 1669320, 1785245, 1836252, 1947540, 2040280, 2142294, 2295315, 2337048, 2448336, 2596720, 2856392, 2921310, 3060420, 3213441, 3338640, 3570490, 3672504, 3895080, 4080560, 4284588, 4590630, 4674096, 5355735, 5712784, 5842620, 6120840, 6426882, 7140980, 7345008, 7790160, 8569176, 9181260, 10711470, 11685240, 12241680, 12853764, 14281960, 16067205, 17138352, 18362520, 21422940, 23370480, 25707528, 28563920, 32134410, 36725040, 42845880, 51415056, 64268820, 85691760, 128537640, 257075280]

約数ペア:

[(1, 257075280), (2, 128537640), (3, 85691760), (4, 64268820), (5, 51415056), (6, 42845880), (7, 36725040), (8, 32134410), (9, 28563920), (10, 25707528), (11, 23370480), (12, 21422940), (14, 18362520), (15, 17138352), (16, 16067205), (18, 14281960), (20, 12853764), (21, 12241680), (22, 11685240), (24, 10711470), (28, 9181260), (30, 8569176), (33, 7790160), (35, 7345008), (36, 7140980), (40, 6426882), (42, 6120840), (44, 5842620), (45, 5712784), (48, 5355735), (55, 4674096), (56, 4590630), (60, 4284588), (63, 4080560), (66, 3895080), (70, 3672504), (72, 3570490), (77, 3338640), (80, 3213441), (84, 3060420), (88, 2921310), (90, 2856392), (99, 2596720), (105, 2448336), (110, 2337048), (112, 2295315), (120, 2142294), (126, 2040280), (132, 1947540), (140, 1836252), (144, 1785245), (154, 1669320), (165, 1558032), (168, 1530210), (176, 1460655), (180, 1428196), (198, 1298360), (210, 1224168), (220, 1168524), (231, 1112880), (240, 1071147), (252, 1020140), (264, 973770), (280, 918126), (308, 834660), (315, 816112), (330, 779016), (336, 765105), (360, 714098), (385, 667728), (396, 649180), (420, 612084), (440, 584262), (462, 556440), (495, 519344), (504, 510070), (528, 486885), (560, 459063), (616, 417330), (630, 408056), (660, 389508), (693, 370960), (720, 357049), (770, 333864), (792, 324590), (840, 306042), (880, 292131), (924, 278220), (990, 259672), (1008, 255035), (1155, 222576), (1232, 208665), (1260, 204028), (1320, 194754), (1386, 185480), (1540, 166932), (1584, 162295), (1680, 153021), (1848, 139110), (1980, 129836), (2310, 111288), (2520, 102014), (2640, 97377), (2772, 92740), (3080, 83466), (3465, 74192), (3696, 69555), (3960, 64918), (4620, 55644), (4637, 55440), (5040, 51007), (5544, 46370), (6160, 41733), (6930, 37096), (7920, 32459), (9240, 27822), (9274, 27720), (11088, 23185), (13860, 18548), (13911, 18480)]