19895040

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1$

素因数の和:195

約数の個数: 216

約数和(自身を含む): 75570768

約数和(自身を除く): 55675728

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 110, 120, 128, 132, 144, 157, 160, 165, 176, 180, 192, 198, 220, 240, 256, 264, 288, 314, 320, 330, 352, 360, 384, 396, 440, 471, 480, 495, 528, 576, 628, 640, 660, 704, 720, 768, 785, 792, 880, 942, 960, 990, 1056, 1152, 1256, 1280, 1320, 1408, 1413, 1440, 1570, 1584, 1727, 1760, 1884, 1920, 1980, 2112, 2304, 2355, 2512, 2640, 2816, 2826, 2880, 3140, 3168, 3454, 3520, 3768, 3840, 3960, 4224, 4710, 5024, 5181, 5280, 5652, 5760, 6280, 6336, 6908, 7040, 7065, 7536, 7920, 8448, 8635, 9420, 10048, 10362, 10560, 11304, 11520, 12560, 12672, 13816, 14080, 14130, 15072, 15543, 15840, 17270, 18840, 20096, 20724, 21120, 22608, 25120, 25344, 25905, 27632, 28260, 30144, 31086, 31680, 34540, 37680, 40192, 41448, 42240, 45216, 50240, 51810, 55264, 56520, 60288, 62172, 63360, 69080, 75360, 77715, 82896, 90432, 100480, 103620, 110528, 113040, 120576, 124344, 126720, 138160, 150720, 155430, 165792, 180864, 200960, 207240, 221056, 226080, 248688, 276320, 301440, 310860, 331584, 361728, 414480, 442112, 452160, 497376, 552640, 602880, 621720, 663168, 828960, 904320, 994752, 1105280, 1243440, 1326336, 1657920, 1808640, 1989504, 2210560, 2486880, 3315840, 3979008, 4973760, 6631680, 9947520, 19895040]

約数ペア:

[(1, 19895040), (2, 9947520), (3, 6631680), (4, 4973760), (5, 3979008), (6, 3315840), (8, 2486880), (9, 2210560), (10, 1989504), (11, 1808640), (12, 1657920), (15, 1326336), (16, 1243440), (18, 1105280), (20, 994752), (22, 904320), (24, 828960), (30, 663168), (32, 621720), (33, 602880), (36, 552640), (40, 497376), (44, 452160), (45, 442112), (48, 414480), (55, 361728), (60, 331584), (64, 310860), (66, 301440), (72, 276320), (80, 248688), (88, 226080), (90, 221056), (96, 207240), (99, 200960), (110, 180864), (120, 165792), (128, 155430), (132, 150720), (144, 138160), (157, 126720), (160, 124344), (165, 120576), (176, 113040), (180, 110528), (192, 103620), (198, 100480), (220, 90432), (240, 82896), (256, 77715), (264, 75360), (288, 69080), (314, 63360), (320, 62172), (330, 60288), (352, 56520), (360, 55264), (384, 51810), (396, 50240), (440, 45216), (471, 42240), (480, 41448), (495, 40192), (528, 37680), (576, 34540), (628, 31680), (640, 31086), (660, 30144), (704, 28260), (720, 27632), (768, 25905), (785, 25344), (792, 25120), (880, 22608), (942, 21120), (960, 20724), (990, 20096), (1056, 18840), (1152, 17270), (1256, 15840), (1280, 15543), (1320, 15072), (1408, 14130), (1413, 14080), (1440, 13816), (1570, 12672), (1584, 12560), (1727, 11520), (1760, 11304), (1884, 10560), (1920, 10362), (1980, 10048), (2112, 9420), (2304, 8635), (2355, 8448), (2512, 7920), (2640, 7536), (2816, 7065), (2826, 7040), (2880, 6908), (3140, 6336), (3168, 6280), (3454, 5760), (3520, 5652), (3768, 5280), (3840, 5181), (3960, 5024), (4224, 4710)]