20751360

素因数分解:

$2^{10}\times 3^1\times 5^1\times 7^1\times {\mathrm{193}}^1$

素因数の和:228

約数の個数: 176

約数和(自身を含む): 76246656

約数和(自身を除く): 55495296

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 193, 210, 224, 240, 256, 280, 320, 336, 384, 386, 420, 448, 480, 512, 560, 579, 640, 672, 768, 772, 840, 896, 960, 965, 1024, 1120, 1158, 1280, 1344, 1351, 1536, 1544, 1680, 1792, 1920, 1930, 2240, 2316, 2560, 2688, 2702, 2895, 3072, 3088, 3360, 3584, 3840, 3860, 4053, 4480, 4632, 5120, 5376, 5404, 5790, 6176, 6720, 6755, 7168, 7680, 7720, 8106, 8960, 9264, 10752, 10808, 11580, 12352, 13440, 13510, 15360, 15440, 16212, 17920, 18528, 20265, 21504, 21616, 23160, 24704, 26880, 27020, 30880, 32424, 35840, 37056, 40530, 43232, 46320, 49408, 53760, 54040, 61760, 64848, 74112, 81060, 86464, 92640, 98816, 107520, 108080, 123520, 129696, 148224, 162120, 172928, 185280, 197632, 216160, 247040, 259392, 296448, 324240, 345856, 370560, 432320, 494080, 518784, 592896, 648480, 691712, 741120, 864640, 988160, 1037568, 1296960, 1383424, 1482240, 1729280, 2075136, 2593920, 2964480, 3458560, 4150272, 5187840, 6917120, 10375680, 20751360]

約数ペア:

[(1, 20751360), (2, 10375680), (3, 6917120), (4, 5187840), (5, 4150272), (6, 3458560), (7, 2964480), (8, 2593920), (10, 2075136), (12, 1729280), (14, 1482240), (15, 1383424), (16, 1296960), (20, 1037568), (21, 988160), (24, 864640), (28, 741120), (30, 691712), (32, 648480), (35, 592896), (40, 518784), (42, 494080), (48, 432320), (56, 370560), (60, 345856), (64, 324240), (70, 296448), (80, 259392), (84, 247040), (96, 216160), (105, 197632), (112, 185280), (120, 172928), (128, 162120), (140, 148224), (160, 129696), (168, 123520), (192, 108080), (193, 107520), (210, 98816), (224, 92640), (240, 86464), (256, 81060), (280, 74112), (320, 64848), (336, 61760), (384, 54040), (386, 53760), (420, 49408), (448, 46320), (480, 43232), (512, 40530), (560, 37056), (579, 35840), (640, 32424), (672, 30880), (768, 27020), (772, 26880), (840, 24704), (896, 23160), (960, 21616), (965, 21504), (1024, 20265), (1120, 18528), (1158, 17920), (1280, 16212), (1344, 15440), (1351, 15360), (1536, 13510), (1544, 13440), (1680, 12352), (1792, 11580), (1920, 10808), (1930, 10752), (2240, 9264), (2316, 8960), (2560, 8106), (2688, 7720), (2702, 7680), (2895, 7168), (3072, 6755), (3088, 6720), (3360, 6176), (3584, 5790), (3840, 5404), (3860, 5376), (4053, 5120), (4480, 4632)]