28465920

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{353}}^1$

素因数の和:387

約数の個数: 216

約数和(自身を含む): 112877856

約数和(自身を除く): 84411936

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 256, 280, 288, 315, 320, 336, 353, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 706, 720, 768, 840, 896, 960, 1008, 1059, 1120, 1152, 1260, 1280, 1344, 1412, 1440, 1680, 1765, 1792, 1920, 2016, 2118, 2240, 2304, 2471, 2520, 2688, 2824, 2880, 3177, 3360, 3530, 3840, 4032, 4236, 4480, 4942, 5040, 5295, 5376, 5648, 5760, 6354, 6720, 7060, 7413, 8064, 8472, 8960, 9884, 10080, 10590, 11296, 11520, 12355, 12708, 13440, 14120, 14826, 15885, 16128, 16944, 19768, 20160, 21180, 22239, 22592, 24710, 25416, 26880, 28240, 29652, 31770, 33888, 37065, 39536, 40320, 42360, 44478, 45184, 49420, 50832, 56480, 59304, 63540, 67776, 74130, 79072, 80640, 84720, 88956, 90368, 98840, 101664, 111195, 112960, 118608, 127080, 135552, 148260, 158144, 169440, 177912, 197680, 203328, 222390, 225920, 237216, 254160, 271104, 296520, 316288, 338880, 355824, 395360, 406656, 444780, 451840, 474432, 508320, 593040, 632576, 677760, 711648, 790720, 813312, 889560, 948864, 1016640, 1186080, 1355520, 1423296, 1581440, 1779120, 1897728, 2033280, 2372160, 2846592, 3162880, 3558240, 4066560, 4744320, 5693184, 7116480, 9488640, 14232960, 28465920]

約数ペア:

[(1, 28465920), (2, 14232960), (3, 9488640), (4, 7116480), (5, 5693184), (6, 4744320), (7, 4066560), (8, 3558240), (9, 3162880), (10, 2846592), (12, 2372160), (14, 2033280), (15, 1897728), (16, 1779120), (18, 1581440), (20, 1423296), (21, 1355520), (24, 1186080), (28, 1016640), (30, 948864), (32, 889560), (35, 813312), (36, 790720), (40, 711648), (42, 677760), (45, 632576), (48, 593040), (56, 508320), (60, 474432), (63, 451840), (64, 444780), (70, 406656), (72, 395360), (80, 355824), (84, 338880), (90, 316288), (96, 296520), (105, 271104), (112, 254160), (120, 237216), (126, 225920), (128, 222390), (140, 203328), (144, 197680), (160, 177912), (168, 169440), (180, 158144), (192, 148260), (210, 135552), (224, 127080), (240, 118608), (252, 112960), (256, 111195), (280, 101664), (288, 98840), (315, 90368), (320, 88956), (336, 84720), (353, 80640), (360, 79072), (384, 74130), (420, 67776), (448, 63540), (480, 59304), (504, 56480), (560, 50832), (576, 49420), (630, 45184), (640, 44478), (672, 42360), (706, 40320), (720, 39536), (768, 37065), (840, 33888), (896, 31770), (960, 29652), (1008, 28240), (1059, 26880), (1120, 25416), (1152, 24710), (1260, 22592), (1280, 22239), (1344, 21180), (1412, 20160), (1440, 19768), (1680, 16944), (1765, 16128), (1792, 15885), (1920, 14826), (2016, 14120), (2118, 13440), (2240, 12708), (2304, 12355), (2471, 11520), (2520, 11296), (2688, 10590), (2824, 10080), (2880, 9884), (3177, 8960), (3360, 8472), (3530, 8064), (3840, 7413), (4032, 7060), (4236, 6720), (4480, 6354), (4942, 5760), (5040, 5648), (5295, 5376)]