20218800

素因数分解:

$2^4\times 3^1\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:140

約数の個数: 240

約数和(自身を含む): 77495040

約数和(自身を除く): 57276240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 29, 30, 35, 40, 42, 48, 50, 56, 58, 60, 70, 75, 80, 83, 84, 87, 100, 105, 112, 116, 120, 140, 145, 150, 166, 168, 174, 175, 200, 203, 210, 232, 240, 249, 280, 290, 300, 332, 336, 348, 350, 400, 406, 415, 420, 435, 464, 498, 525, 560, 580, 581, 600, 609, 664, 696, 700, 725, 812, 830, 840, 870, 996, 1015, 1050, 1160, 1162, 1200, 1218, 1245, 1328, 1392, 1400, 1450, 1624, 1660, 1680, 1740, 1743, 1992, 2030, 2075, 2100, 2175, 2320, 2324, 2407, 2436, 2490, 2800, 2900, 2905, 3045, 3248, 3320, 3480, 3486, 3984, 4060, 4150, 4200, 4350, 4648, 4814, 4872, 4980, 5075, 5800, 5810, 6090, 6225, 6640, 6960, 6972, 7221, 8120, 8300, 8400, 8700, 8715, 9296, 9628, 9744, 9960, 10150, 11600, 11620, 12035, 12180, 12450, 13944, 14442, 14525, 15225, 16240, 16600, 16849, 17400, 17430, 19256, 19920, 20300, 23240, 24070, 24360, 24900, 27888, 28884, 29050, 30450, 33200, 33698, 34800, 34860, 36105, 38512, 40600, 43575, 46480, 48140, 48720, 49800, 50547, 57768, 58100, 60175, 60900, 67396, 69720, 72210, 81200, 84245, 87150, 96280, 99600, 101094, 115536, 116200, 120350, 121800, 134792, 139440, 144420, 168490, 174300, 180525, 192560, 202188, 232400, 240700, 243600, 252735, 269584, 288840, 336980, 348600, 361050, 404376, 421225, 481400, 505470, 577680, 673960, 697200, 722100, 808752, 842450, 962800, 1010940, 1263675, 1347920, 1444200, 1684900, 2021880, 2527350, 2888400, 3369800, 4043760, 5054700, 6739600, 10109400, 20218800]

約数ペア:

[(1, 20218800), (2, 10109400), (3, 6739600), (4, 5054700), (5, 4043760), (6, 3369800), (7, 2888400), (8, 2527350), (10, 2021880), (12, 1684900), (14, 1444200), (15, 1347920), (16, 1263675), (20, 1010940), (21, 962800), (24, 842450), (25, 808752), (28, 722100), (29, 697200), (30, 673960), (35, 577680), (40, 505470), (42, 481400), (48, 421225), (50, 404376), (56, 361050), (58, 348600), (60, 336980), (70, 288840), (75, 269584), (80, 252735), (83, 243600), (84, 240700), (87, 232400), (100, 202188), (105, 192560), (112, 180525), (116, 174300), (120, 168490), (140, 144420), (145, 139440), (150, 134792), (166, 121800), (168, 120350), (174, 116200), (175, 115536), (200, 101094), (203, 99600), (210, 96280), (232, 87150), (240, 84245), (249, 81200), (280, 72210), (290, 69720), (300, 67396), (332, 60900), (336, 60175), (348, 58100), (350, 57768), (400, 50547), (406, 49800), (415, 48720), (420, 48140), (435, 46480), (464, 43575), (498, 40600), (525, 38512), (560, 36105), (580, 34860), (581, 34800), (600, 33698), (609, 33200), (664, 30450), (696, 29050), (700, 28884), (725, 27888), (812, 24900), (830, 24360), (840, 24070), (870, 23240), (996, 20300), (1015, 19920), (1050, 19256), (1160, 17430), (1162, 17400), (1200, 16849), (1218, 16600), (1245, 16240), (1328, 15225), (1392, 14525), (1400, 14442), (1450, 13944), (1624, 12450), (1660, 12180), (1680, 12035), (1740, 11620), (1743, 11600), (1992, 10150), (2030, 9960), (2075, 9744), (2100, 9628), (2175, 9296), (2320, 8715), (2324, 8700), (2407, 8400), (2436, 8300), (2490, 8120), (2800, 7221), (2900, 6972), (2905, 6960), (3045, 6640), (3248, 6225), (3320, 6090), (3480, 5810), (3486, 5800), (3984, 5075), (4060, 4980), (4150, 4872), (4200, 4814), (4350, 4648)]