28758240

素因数分解:

$2^5\times 3^4\times 5^1\times 7^1\times {\mathrm{317}}^1$

素因数の和:351

約数の個数: 240

約数和(自身を含む): 116357472

約数和(自身を除く): 87599232

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 162, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 317, 324, 336, 360, 378, 405, 420, 432, 480, 504, 540, 560, 567, 630, 634, 648, 672, 720, 756, 810, 840, 864, 945, 951, 1008, 1080, 1120, 1134, 1260, 1268, 1296, 1440, 1512, 1585, 1620, 1680, 1890, 1902, 2016, 2160, 2219, 2268, 2520, 2536, 2592, 2835, 2853, 3024, 3170, 3240, 3360, 3780, 3804, 4320, 4438, 4536, 4755, 5040, 5072, 5670, 5706, 6048, 6340, 6480, 6657, 7560, 7608, 8559, 8876, 9072, 9510, 10080, 10144, 11095, 11340, 11412, 12680, 12960, 13314, 14265, 15120, 15216, 17118, 17752, 18144, 19020, 19971, 22190, 22680, 22824, 25360, 25677, 26628, 28530, 30240, 30432, 33285, 34236, 35504, 38040, 39942, 42795, 44380, 45360, 45648, 50720, 51354, 53256, 57060, 59913, 66570, 68472, 71008, 76080, 79884, 85590, 88760, 90720, 91296, 99855, 102708, 106512, 114120, 119826, 128385, 133140, 136944, 152160, 159768, 171180, 177520, 179739, 199710, 205416, 213024, 228240, 239652, 256770, 266280, 273888, 299565, 319536, 342360, 355040, 359478, 399420, 410832, 456480, 479304, 513540, 532560, 599130, 639072, 684720, 718956, 798840, 821664, 898695, 958608, 1027080, 1065120, 1198260, 1369440, 1437912, 1597680, 1797390, 1917216, 2054160, 2396520, 2875824, 3195360, 3594780, 4108320, 4793040, 5751648, 7189560, 9586080, 14379120, 28758240]

約数ペア:

[(1, 28758240), (2, 14379120), (3, 9586080), (4, 7189560), (5, 5751648), (6, 4793040), (7, 4108320), (8, 3594780), (9, 3195360), (10, 2875824), (12, 2396520), (14, 2054160), (15, 1917216), (16, 1797390), (18, 1597680), (20, 1437912), (21, 1369440), (24, 1198260), (27, 1065120), (28, 1027080), (30, 958608), (32, 898695), (35, 821664), (36, 798840), (40, 718956), (42, 684720), (45, 639072), (48, 599130), (54, 532560), (56, 513540), (60, 479304), (63, 456480), (70, 410832), (72, 399420), (80, 359478), (81, 355040), (84, 342360), (90, 319536), (96, 299565), (105, 273888), (108, 266280), (112, 256770), (120, 239652), (126, 228240), (135, 213024), (140, 205416), (144, 199710), (160, 179739), (162, 177520), (168, 171180), (180, 159768), (189, 152160), (210, 136944), (216, 133140), (224, 128385), (240, 119826), (252, 114120), (270, 106512), (280, 102708), (288, 99855), (315, 91296), (317, 90720), (324, 88760), (336, 85590), (360, 79884), (378, 76080), (405, 71008), (420, 68472), (432, 66570), (480, 59913), (504, 57060), (540, 53256), (560, 51354), (567, 50720), (630, 45648), (634, 45360), (648, 44380), (672, 42795), (720, 39942), (756, 38040), (810, 35504), (840, 34236), (864, 33285), (945, 30432), (951, 30240), (1008, 28530), (1080, 26628), (1120, 25677), (1134, 25360), (1260, 22824), (1268, 22680), (1296, 22190), (1440, 19971), (1512, 19020), (1585, 18144), (1620, 17752), (1680, 17118), (1890, 15216), (1902, 15120), (2016, 14265), (2160, 13314), (2219, 12960), (2268, 12680), (2520, 11412), (2536, 11340), (2592, 11095), (2835, 10144), (2853, 10080), (3024, 9510), (3170, 9072), (3240, 8876), (3360, 8559), (3780, 7608), (3804, 7560), (4320, 6657), (4438, 6480), (4536, 6340), (4755, 6048), (5040, 5706), (5072, 5670)]