20475840

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{277}}^1$

素因数の和:315

約数の個数: 224

約数和(自身を含む): 81345024

約数和(自身を除く): 60869184

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, 132, 140, 154, 160, 165, 168, 176, 192, 210, 220, 224, 231, 240, 264, 277, 280, 308, 320, 330, 336, 352, 385, 420, 440, 448, 462, 480, 528, 554, 560, 616, 660, 672, 704, 770, 831, 840, 880, 924, 960, 1056, 1108, 1120, 1155, 1232, 1320, 1344, 1385, 1540, 1662, 1680, 1760, 1848, 1939, 2112, 2216, 2240, 2310, 2464, 2640, 2770, 3047, 3080, 3324, 3360, 3520, 3696, 3878, 4155, 4432, 4620, 4928, 5280, 5540, 5817, 6094, 6160, 6648, 6720, 7392, 7756, 8310, 8864, 9141, 9240, 9695, 10560, 11080, 11634, 12188, 12320, 13296, 14784, 15235, 15512, 16620, 17728, 18282, 18480, 19390, 21329, 22160, 23268, 24376, 24640, 26592, 29085, 30470, 31024, 33240, 36564, 36960, 38780, 42658, 44320, 45705, 46536, 48752, 53184, 58170, 60940, 62048, 63987, 66480, 73128, 73920, 77560, 85316, 88640, 91410, 93072, 97504, 106645, 116340, 121880, 124096, 127974, 132960, 146256, 155120, 170632, 182820, 186144, 195008, 213290, 232680, 243760, 255948, 265920, 292512, 310240, 319935, 341264, 365640, 372288, 426580, 465360, 487520, 511896, 585024, 620480, 639870, 682528, 731280, 853160, 930720, 975040, 1023792, 1279740, 1365056, 1462560, 1706320, 1861440, 2047584, 2559480, 2925120, 3412640, 4095168, 5118960, 6825280, 10237920, 20475840]

約数ペア:

[(1, 20475840), (2, 10237920), (3, 6825280), (4, 5118960), (5, 4095168), (6, 3412640), (7, 2925120), (8, 2559480), (10, 2047584), (11, 1861440), (12, 1706320), (14, 1462560), (15, 1365056), (16, 1279740), (20, 1023792), (21, 975040), (22, 930720), (24, 853160), (28, 731280), (30, 682528), (32, 639870), (33, 620480), (35, 585024), (40, 511896), (42, 487520), (44, 465360), (48, 426580), (55, 372288), (56, 365640), (60, 341264), (64, 319935), (66, 310240), (70, 292512), (77, 265920), (80, 255948), (84, 243760), (88, 232680), (96, 213290), (105, 195008), (110, 186144), (112, 182820), (120, 170632), (132, 155120), (140, 146256), (154, 132960), (160, 127974), (165, 124096), (168, 121880), (176, 116340), (192, 106645), (210, 97504), (220, 93072), (224, 91410), (231, 88640), (240, 85316), (264, 77560), (277, 73920), (280, 73128), (308, 66480), (320, 63987), (330, 62048), (336, 60940), (352, 58170), (385, 53184), (420, 48752), (440, 46536), (448, 45705), (462, 44320), (480, 42658), (528, 38780), (554, 36960), (560, 36564), (616, 33240), (660, 31024), (672, 30470), (704, 29085), (770, 26592), (831, 24640), (840, 24376), (880, 23268), (924, 22160), (960, 21329), (1056, 19390), (1108, 18480), (1120, 18282), (1155, 17728), (1232, 16620), (1320, 15512), (1344, 15235), (1385, 14784), (1540, 13296), (1662, 12320), (1680, 12188), (1760, 11634), (1848, 11080), (1939, 10560), (2112, 9695), (2216, 9240), (2240, 9141), (2310, 8864), (2464, 8310), (2640, 7756), (2770, 7392), (3047, 6720), (3080, 6648), (3324, 6160), (3360, 6094), (3520, 5817), (3696, 5540), (3878, 5280), (4155, 4928), (4432, 4620)]