16420320

素因数分解:

$2^5\times 3^4\times 5^1\times 7^1\times {\mathrm{181}}^1$

素因数の和:215

約数の個数: 240

約数和(自身を含む): 66594528

約数和(自身を除く): 50174208

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, 181, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 324, 336, 360, 362, 378, 405, 420, 432, 480, 504, 540, 543, 560, 567, 630, 648, 672, 720, 724, 756, 810, 840, 864, 905, 945, 1008, 1080, 1086, 1120, 1134, 1260, 1267, 1296, 1440, 1448, 1512, 1620, 1629, 1680, 1810, 1890, 2016, 2160, 2172, 2268, 2520, 2534, 2592, 2715, 2835, 2896, 3024, 3240, 3258, 3360, 3620, 3780, 3801, 4320, 4344, 4536, 4887, 5040, 5068, 5430, 5670, 5792, 6048, 6335, 6480, 6516, 7240, 7560, 7602, 8145, 8688, 9072, 9774, 10080, 10136, 10860, 11340, 11403, 12670, 12960, 13032, 14480, 14661, 15120, 15204, 16290, 17376, 18144, 19005, 19548, 20272, 21720, 22680, 22806, 24435, 25340, 26064, 28960, 29322, 30240, 30408, 32580, 34209, 38010, 39096, 40544, 43440, 45360, 45612, 48870, 50680, 52128, 57015, 58644, 60816, 65160, 68418, 73305, 76020, 78192, 86880, 90720, 91224, 97740, 101360, 102627, 114030, 117288, 121632, 130320, 136836, 146610, 152040, 156384, 171045, 182448, 195480, 202720, 205254, 228060, 234576, 260640, 273672, 293220, 304080, 342090, 364896, 390960, 410508, 456120, 469152, 513135, 547344, 586440, 608160, 684180, 781920, 821016, 912240, 1026270, 1094688, 1172880, 1368360, 1642032, 1824480, 2052540, 2345760, 2736720, 3284064, 4105080, 5473440, 8210160, 16420320]

約数ペア:

[(1, 16420320), (2, 8210160), (3, 5473440), (4, 4105080), (5, 3284064), (6, 2736720), (7, 2345760), (8, 2052540), (9, 1824480), (10, 1642032), (12, 1368360), (14, 1172880), (15, 1094688), (16, 1026270), (18, 912240), (20, 821016), (21, 781920), (24, 684180), (27, 608160), (28, 586440), (30, 547344), (32, 513135), (35, 469152), (36, 456120), (40, 410508), (42, 390960), (45, 364896), (48, 342090), (54, 304080), (56, 293220), (60, 273672), (63, 260640), (70, 234576), (72, 228060), (80, 205254), (81, 202720), (84, 195480), (90, 182448), (96, 171045), (105, 156384), (108, 152040), (112, 146610), (120, 136836), (126, 130320), (135, 121632), (140, 117288), (144, 114030), (160, 102627), (162, 101360), (168, 97740), (180, 91224), (181, 90720), (189, 86880), (210, 78192), (216, 76020), (224, 73305), (240, 68418), (252, 65160), (270, 60816), (280, 58644), (288, 57015), (315, 52128), (324, 50680), (336, 48870), (360, 45612), (362, 45360), (378, 43440), (405, 40544), (420, 39096), (432, 38010), (480, 34209), (504, 32580), (540, 30408), (543, 30240), (560, 29322), (567, 28960), (630, 26064), (648, 25340), (672, 24435), (720, 22806), (724, 22680), (756, 21720), (810, 20272), (840, 19548), (864, 19005), (905, 18144), (945, 17376), (1008, 16290), (1080, 15204), (1086, 15120), (1120, 14661), (1134, 14480), (1260, 13032), (1267, 12960), (1296, 12670), (1440, 11403), (1448, 11340), (1512, 10860), (1620, 10136), (1629, 10080), (1680, 9774), (1810, 9072), (1890, 8688), (2016, 8145), (2160, 7602), (2172, 7560), (2268, 7240), (2520, 6516), (2534, 6480), (2592, 6335), (2715, 6048), (2835, 5792), (2896, 5670), (3024, 5430), (3240, 5068), (3258, 5040), (3360, 4887), (3620, 4536), (3780, 4344), (3801, 4320)]