21628320

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:223

約数の個数: 192

約数和(自身を含む): 80269056

約数和(自身を除く): 58640736

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 41, 42, 48, 56, 60, 70, 80, 82, 84, 96, 105, 112, 120, 123, 140, 157, 160, 164, 168, 205, 210, 224, 240, 246, 280, 287, 314, 328, 336, 410, 420, 471, 480, 492, 560, 574, 615, 628, 656, 672, 785, 820, 840, 861, 942, 984, 1099, 1120, 1148, 1230, 1256, 1312, 1435, 1570, 1640, 1680, 1722, 1884, 1968, 2198, 2296, 2355, 2460, 2512, 2870, 3140, 3280, 3297, 3360, 3444, 3768, 3936, 4305, 4396, 4592, 4710, 4920, 5024, 5495, 5740, 6280, 6437, 6560, 6594, 6888, 7536, 8610, 8792, 9184, 9420, 9840, 10990, 11480, 12560, 12874, 13188, 13776, 15072, 16485, 17220, 17584, 18840, 19311, 19680, 21980, 22960, 25120, 25748, 26376, 27552, 32185, 32970, 34440, 35168, 37680, 38622, 43960, 45059, 45920, 51496, 52752, 64370, 65940, 68880, 75360, 77244, 87920, 90118, 96555, 102992, 105504, 128740, 131880, 135177, 137760, 154488, 175840, 180236, 193110, 205984, 225295, 257480, 263760, 270354, 308976, 360472, 386220, 450590, 514960, 527520, 540708, 617952, 675885, 720944, 772440, 901180, 1029920, 1081416, 1351770, 1441888, 1544880, 1802360, 2162832, 2703540, 3089760, 3604720, 4325664, 5407080, 7209440, 10814160, 21628320]

約数ペア:

[(1, 21628320), (2, 10814160), (3, 7209440), (4, 5407080), (5, 4325664), (6, 3604720), (7, 3089760), (8, 2703540), (10, 2162832), (12, 1802360), (14, 1544880), (15, 1441888), (16, 1351770), (20, 1081416), (21, 1029920), (24, 901180), (28, 772440), (30, 720944), (32, 675885), (35, 617952), (40, 540708), (41, 527520), (42, 514960), (48, 450590), (56, 386220), (60, 360472), (70, 308976), (80, 270354), (82, 263760), (84, 257480), (96, 225295), (105, 205984), (112, 193110), (120, 180236), (123, 175840), (140, 154488), (157, 137760), (160, 135177), (164, 131880), (168, 128740), (205, 105504), (210, 102992), (224, 96555), (240, 90118), (246, 87920), (280, 77244), (287, 75360), (314, 68880), (328, 65940), (336, 64370), (410, 52752), (420, 51496), (471, 45920), (480, 45059), (492, 43960), (560, 38622), (574, 37680), (615, 35168), (628, 34440), (656, 32970), (672, 32185), (785, 27552), (820, 26376), (840, 25748), (861, 25120), (942, 22960), (984, 21980), (1099, 19680), (1120, 19311), (1148, 18840), (1230, 17584), (1256, 17220), (1312, 16485), (1435, 15072), (1570, 13776), (1640, 13188), (1680, 12874), (1722, 12560), (1884, 11480), (1968, 10990), (2198, 9840), (2296, 9420), (2355, 9184), (2460, 8792), (2512, 8610), (2870, 7536), (3140, 6888), (3280, 6594), (3297, 6560), (3360, 6437), (3444, 6280), (3768, 5740), (3936, 5495), (4305, 5024), (4396, 4920), (4592, 4710)]