18985120

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:123

約数の個数: 192

約数和(自身を含む): 59222016

約数和(自身を除く): 40236896

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 23, 28, 32, 35, 40, 44, 46, 55, 56, 67, 70, 77, 80, 88, 92, 110, 112, 115, 134, 140, 154, 160, 161, 176, 184, 220, 224, 230, 253, 268, 280, 308, 322, 335, 352, 368, 385, 440, 460, 469, 506, 536, 560, 616, 644, 670, 736, 737, 770, 805, 880, 920, 938, 1012, 1072, 1120, 1232, 1265, 1288, 1340, 1474, 1540, 1541, 1610, 1760, 1771, 1840, 1876, 2024, 2144, 2345, 2464, 2530, 2576, 2680, 2948, 3080, 3082, 3220, 3542, 3680, 3685, 3752, 4048, 4690, 5060, 5152, 5159, 5360, 5896, 6160, 6164, 6440, 7084, 7370, 7504, 7705, 8096, 8855, 9380, 10120, 10318, 10720, 10787, 11792, 12320, 12328, 12880, 14168, 14740, 15008, 15410, 16951, 17710, 18760, 20240, 20636, 21574, 23584, 24656, 25760, 25795, 28336, 29480, 30820, 33902, 35420, 37520, 40480, 41272, 43148, 49312, 51590, 53935, 56672, 58960, 61640, 67804, 70840, 75040, 82544, 84755, 86296, 103180, 107870, 117920, 118657, 123280, 135608, 141680, 165088, 169510, 172592, 206360, 215740, 237314, 246560, 271216, 283360, 339020, 345184, 412720, 431480, 474628, 542432, 593285, 678040, 825440, 862960, 949256, 1186570, 1356080, 1725920, 1898512, 2373140, 2712160, 3797024, 4746280, 9492560, 18985120]

約数ペア:

[(1, 18985120), (2, 9492560), (4, 4746280), (5, 3797024), (7, 2712160), (8, 2373140), (10, 1898512), (11, 1725920), (14, 1356080), (16, 1186570), (20, 949256), (22, 862960), (23, 825440), (28, 678040), (32, 593285), (35, 542432), (40, 474628), (44, 431480), (46, 412720), (55, 345184), (56, 339020), (67, 283360), (70, 271216), (77, 246560), (80, 237314), (88, 215740), (92, 206360), (110, 172592), (112, 169510), (115, 165088), (134, 141680), (140, 135608), (154, 123280), (160, 118657), (161, 117920), (176, 107870), (184, 103180), (220, 86296), (224, 84755), (230, 82544), (253, 75040), (268, 70840), (280, 67804), (308, 61640), (322, 58960), (335, 56672), (352, 53935), (368, 51590), (385, 49312), (440, 43148), (460, 41272), (469, 40480), (506, 37520), (536, 35420), (560, 33902), (616, 30820), (644, 29480), (670, 28336), (736, 25795), (737, 25760), (770, 24656), (805, 23584), (880, 21574), (920, 20636), (938, 20240), (1012, 18760), (1072, 17710), (1120, 16951), (1232, 15410), (1265, 15008), (1288, 14740), (1340, 14168), (1474, 12880), (1540, 12328), (1541, 12320), (1610, 11792), (1760, 10787), (1771, 10720), (1840, 10318), (1876, 10120), (2024, 9380), (2144, 8855), (2345, 8096), (2464, 7705), (2530, 7504), (2576, 7370), (2680, 7084), (2948, 6440), (3080, 6164), (3082, 6160), (3220, 5896), (3542, 5360), (3680, 5159), (3685, 5152), (3752, 5060), (4048, 4690)]