280403760

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{347}}^1$

素因数の和:420

約数の個数: 320

約数和(自身を含む): 1101929472

約数和(自身を除く): 821525712

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 37, 39, 40, 42, 48, 52, 56, 60, 65, 70, 74, 78, 80, 84, 91, 104, 105, 111, 112, 120, 130, 140, 148, 156, 168, 182, 185, 195, 208, 210, 222, 240, 259, 260, 273, 280, 296, 312, 336, 347, 364, 370, 390, 420, 444, 455, 481, 518, 520, 546, 555, 560, 592, 624, 694, 728, 740, 777, 780, 840, 888, 910, 962, 1036, 1040, 1041, 1092, 1110, 1295, 1365, 1388, 1443, 1456, 1480, 1554, 1560, 1680, 1735, 1776, 1820, 1924, 2072, 2082, 2184, 2220, 2405, 2429, 2590, 2730, 2776, 2886, 2960, 3108, 3120, 3367, 3470, 3640, 3848, 3885, 4144, 4164, 4368, 4440, 4511, 4810, 4858, 5180, 5205, 5460, 5552, 5772, 6216, 6734, 6940, 7215, 7280, 7287, 7696, 7770, 8328, 8880, 9022, 9620, 9716, 10101, 10360, 10410, 10920, 11544, 12145, 12432, 12839, 13468, 13533, 13880, 14430, 14574, 15540, 16656, 16835, 18044, 19240, 19432, 20202, 20720, 20820, 21840, 22555, 23088, 24290, 25678, 26936, 27066, 27760, 28860, 29148, 31080, 31577, 33670, 36088, 36435, 38480, 38517, 38864, 40404, 41640, 45110, 48580, 50505, 51356, 53872, 54132, 57720, 58296, 62160, 63154, 64195, 67340, 67665, 72176, 72870, 77034, 80808, 83280, 89873, 90220, 94731, 97160, 101010, 102712, 108264, 115440, 116592, 126308, 128390, 134680, 135330, 145740, 154068, 157885, 161616, 166907, 179746, 180440, 189462, 192585, 194320, 202020, 205424, 216528, 252616, 256780, 269360, 269619, 270660, 291480, 308136, 315770, 333814, 359492, 360880, 378924, 385170, 404040, 449365, 473655, 500721, 505232, 513560, 539238, 541320, 582960, 616272, 631540, 667628, 718984, 757848, 770340, 808080, 834535, 898730, 947310, 1001442, 1027120, 1078476, 1082640, 1168349, 1263080, 1335256, 1348095, 1437968, 1515696, 1540680, 1669070, 1797460, 1894620, 2002884, 2156952, 2336698, 2503605, 2526160, 2670512, 2696190, 3081360, 3338140, 3505047, 3594920, 3789240, 4005768, 4313904, 4673396, 5007210, 5392380, 5841745, 6676280, 7010094, 7189840, 7578480, 8011536, 9346792, 10014420, 10784760, 11683490, 13352560, 14020188, 17525235, 18693584, 20028840, 21569520, 23366980, 28040376, 35050470, 40057680, 46733960, 56080752, 70100940, 93467920, 140201880, 280403760]

約数ペア:

[(1, 280403760), (2, 140201880), (3, 93467920), (4, 70100940), (5, 56080752), (6, 46733960), (7, 40057680), (8, 35050470), (10, 28040376), (12, 23366980), (13, 21569520), (14, 20028840), (15, 18693584), (16, 17525235), (20, 14020188), (21, 13352560), (24, 11683490), (26, 10784760), (28, 10014420), (30, 9346792), (35, 8011536), (37, 7578480), (39, 7189840), (40, 7010094), (42, 6676280), (48, 5841745), (52, 5392380), (56, 5007210), (60, 4673396), (65, 4313904), (70, 4005768), (74, 3789240), (78, 3594920), (80, 3505047), (84, 3338140), (91, 3081360), (104, 2696190), (105, 2670512), (111, 2526160), (112, 2503605), (120, 2336698), (130, 2156952), (140, 2002884), (148, 1894620), (156, 1797460), (168, 1669070), (182, 1540680), (185, 1515696), (195, 1437968), (208, 1348095), (210, 1335256), (222, 1263080), (240, 1168349), (259, 1082640), (260, 1078476), (273, 1027120), (280, 1001442), (296, 947310), (312, 898730), (336, 834535), (347, 808080), (364, 770340), (370, 757848), (390, 718984), (420, 667628), (444, 631540), (455, 616272), (481, 582960), (518, 541320), (520, 539238), (546, 513560), (555, 505232), (560, 500721), (592, 473655), (624, 449365), (694, 404040), (728, 385170), (740, 378924), (777, 360880), (780, 359492), (840, 333814), (888, 315770), (910, 308136), (962, 291480), (1036, 270660), (1040, 269619), (1041, 269360), (1092, 256780), (1110, 252616), (1295, 216528), (1365, 205424), (1388, 202020), (1443, 194320), (1456, 192585), (1480, 189462), (1554, 180440), (1560, 179746), (1680, 166907), (1735, 161616), (1776, 157885), (1820, 154068), (1924, 145740), (2072, 135330), (2082, 134680), (2184, 128390), (2220, 126308), (2405, 116592), (2429, 115440), (2590, 108264), (2730, 102712), (2776, 101010), (2886, 97160), (2960, 94731), (3108, 90220), (3120, 89873), (3367, 83280), (3470, 80808), (3640, 77034), (3848, 72870), (3885, 72176), (4144, 67665), (4164, 67340), (4368, 64195), (4440, 63154), (4511, 62160), (4810, 58296), (4858, 57720), (5180, 54132), (5205, 53872), (5460, 51356), (5552, 50505), (5772, 48580), (6216, 45110), (6734, 41640), (6940, 40404), (7215, 38864), (7280, 38517), (7287, 38480), (7696, 36435), (7770, 36088), (8328, 33670), (8880, 31577), (9022, 31080), (9620, 29148), (9716, 28860), (10101, 27760), (10360, 27066), (10410, 26936), (10920, 25678), (11544, 24290), (12145, 23088), (12432, 22555), (12839, 21840), (13468, 20820), (13533, 20720), (13880, 20202), (14430, 19432), (14574, 19240), (15540, 18044), (16656, 16835)]