20254080

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1$

素因数の和:177

約数の個数: 256

約数和(自身を含む): 81077760

約数和(自身を除く): 60823680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 32, 33, 35, 40, 42, 44, 48, 55, 56, 60, 64, 66, 70, 77, 80, 84, 88, 96, 105, 110, 112, 120, 128, 132, 137, 140, 154, 160, 165, 168, 176, 192, 210, 220, 224, 231, 240, 264, 274, 280, 308, 320, 330, 336, 352, 384, 385, 411, 420, 440, 448, 462, 480, 528, 548, 560, 616, 640, 660, 672, 685, 704, 770, 822, 840, 880, 896, 924, 959, 960, 1056, 1096, 1120, 1155, 1232, 1320, 1344, 1370, 1408, 1507, 1540, 1644, 1680, 1760, 1848, 1918, 1920, 2055, 2112, 2192, 2240, 2310, 2464, 2640, 2688, 2740, 2877, 3014, 3080, 3288, 3360, 3520, 3696, 3836, 4110, 4224, 4384, 4480, 4521, 4620, 4795, 4928, 5280, 5480, 5754, 6028, 6160, 6576, 6720, 7040, 7392, 7535, 7672, 8220, 8768, 9042, 9240, 9590, 9856, 10549, 10560, 10960, 11508, 12056, 12320, 13152, 13440, 14385, 14784, 15070, 15344, 16440, 17536, 18084, 18480, 19180, 21098, 21120, 21920, 22605, 23016, 24112, 24640, 26304, 28770, 29568, 30140, 30688, 31647, 32880, 36168, 36960, 38360, 42196, 43840, 45210, 46032, 48224, 49280, 52608, 52745, 57540, 60280, 61376, 63294, 65760, 72336, 73920, 76720, 84392, 87680, 90420, 92064, 96448, 105490, 115080, 120560, 122752, 126588, 131520, 144672, 147840, 153440, 158235, 168784, 180840, 184128, 192896, 210980, 230160, 241120, 253176, 263040, 289344, 306880, 316470, 337568, 361680, 368256, 421960, 460320, 482240, 506352, 578688, 613760, 632940, 675136, 723360, 843920, 920640, 964480, 1012704, 1265880, 1350272, 1446720, 1687840, 1841280, 2025408, 2531760, 2893440, 3375680, 4050816, 5063520, 6751360, 10127040, 20254080]

約数ペア:

[(1, 20254080), (2, 10127040), (3, 6751360), (4, 5063520), (5, 4050816), (6, 3375680), (7, 2893440), (8, 2531760), (10, 2025408), (11, 1841280), (12, 1687840), (14, 1446720), (15, 1350272), (16, 1265880), (20, 1012704), (21, 964480), (22, 920640), (24, 843920), (28, 723360), (30, 675136), (32, 632940), (33, 613760), (35, 578688), (40, 506352), (42, 482240), (44, 460320), (48, 421960), (55, 368256), (56, 361680), (60, 337568), (64, 316470), (66, 306880), (70, 289344), (77, 263040), (80, 253176), (84, 241120), (88, 230160), (96, 210980), (105, 192896), (110, 184128), (112, 180840), (120, 168784), (128, 158235), (132, 153440), (137, 147840), (140, 144672), (154, 131520), (160, 126588), (165, 122752), (168, 120560), (176, 115080), (192, 105490), (210, 96448), (220, 92064), (224, 90420), (231, 87680), (240, 84392), (264, 76720), (274, 73920), (280, 72336), (308, 65760), (320, 63294), (330, 61376), (336, 60280), (352, 57540), (384, 52745), (385, 52608), (411, 49280), (420, 48224), (440, 46032), (448, 45210), (462, 43840), (480, 42196), (528, 38360), (548, 36960), (560, 36168), (616, 32880), (640, 31647), (660, 30688), (672, 30140), (685, 29568), (704, 28770), (770, 26304), (822, 24640), (840, 24112), (880, 23016), (896, 22605), (924, 21920), (959, 21120), (960, 21098), (1056, 19180), (1096, 18480), (1120, 18084), (1155, 17536), (1232, 16440), (1320, 15344), (1344, 15070), (1370, 14784), (1408, 14385), (1507, 13440), (1540, 13152), (1644, 12320), (1680, 12056), (1760, 11508), (1848, 10960), (1918, 10560), (1920, 10549), (2055, 9856), (2112, 9590), (2192, 9240), (2240, 9042), (2310, 8768), (2464, 8220), (2640, 7672), (2688, 7535), (2740, 7392), (2877, 7040), (3014, 6720), (3080, 6576), (3288, 6160), (3360, 6028), (3520, 5754), (3696, 5480), (3836, 5280), (4110, 4928), (4224, 4795), (4384, 4620), (4480, 4521)]