20646000

素因数分解:

$2^4\times 3^2\times 5^3\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:97

約数の個数: 240

約数和(自身を含む): 76447488

約数和(自身を除く): 55801488

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 31, 36, 37, 40, 45, 48, 50, 60, 62, 72, 74, 75, 80, 90, 93, 100, 111, 120, 124, 125, 144, 148, 150, 155, 180, 185, 186, 200, 222, 225, 240, 248, 250, 279, 296, 300, 310, 333, 360, 370, 372, 375, 400, 444, 450, 465, 496, 500, 555, 558, 592, 600, 620, 666, 720, 740, 744, 750, 775, 888, 900, 925, 930, 1000, 1110, 1116, 1125, 1147, 1200, 1240, 1332, 1395, 1480, 1488, 1500, 1550, 1665, 1776, 1800, 1850, 1860, 2000, 2220, 2232, 2250, 2294, 2325, 2480, 2664, 2775, 2790, 2960, 3000, 3100, 3330, 3441, 3600, 3700, 3720, 3875, 4440, 4464, 4500, 4588, 4625, 4650, 5328, 5550, 5580, 5735, 6000, 6200, 6660, 6882, 6975, 7400, 7440, 7750, 8325, 8880, 9000, 9176, 9250, 9300, 10323, 11100, 11160, 11470, 11625, 12400, 13320, 13764, 13875, 13950, 14800, 15500, 16650, 17205, 18000, 18352, 18500, 18600, 20646, 22200, 22320, 22940, 23250, 26640, 27528, 27750, 27900, 28675, 31000, 33300, 34410, 34875, 37000, 37200, 41292, 41625, 44400, 45880, 46500, 51615, 55056, 55500, 55800, 57350, 62000, 66600, 68820, 69750, 74000, 82584, 83250, 86025, 91760, 93000, 103230, 111000, 111600, 114700, 133200, 137640, 139500, 143375, 165168, 166500, 172050, 186000, 206460, 222000, 229400, 258075, 275280, 279000, 286750, 333000, 344100, 412920, 430125, 458800, 516150, 558000, 573500, 666000, 688200, 825840, 860250, 1032300, 1147000, 1290375, 1376400, 1720500, 2064600, 2294000, 2580750, 3441000, 4129200, 5161500, 6882000, 10323000, 20646000]

約数ペア:

[(1, 20646000), (2, 10323000), (3, 6882000), (4, 5161500), (5, 4129200), (6, 3441000), (8, 2580750), (9, 2294000), (10, 2064600), (12, 1720500), (15, 1376400), (16, 1290375), (18, 1147000), (20, 1032300), (24, 860250), (25, 825840), (30, 688200), (31, 666000), (36, 573500), (37, 558000), (40, 516150), (45, 458800), (48, 430125), (50, 412920), (60, 344100), (62, 333000), (72, 286750), (74, 279000), (75, 275280), (80, 258075), (90, 229400), (93, 222000), (100, 206460), (111, 186000), (120, 172050), (124, 166500), (125, 165168), (144, 143375), (148, 139500), (150, 137640), (155, 133200), (180, 114700), (185, 111600), (186, 111000), (200, 103230), (222, 93000), (225, 91760), (240, 86025), (248, 83250), (250, 82584), (279, 74000), (296, 69750), (300, 68820), (310, 66600), (333, 62000), (360, 57350), (370, 55800), (372, 55500), (375, 55056), (400, 51615), (444, 46500), (450, 45880), (465, 44400), (496, 41625), (500, 41292), (555, 37200), (558, 37000), (592, 34875), (600, 34410), (620, 33300), (666, 31000), (720, 28675), (740, 27900), (744, 27750), (750, 27528), (775, 26640), (888, 23250), (900, 22940), (925, 22320), (930, 22200), (1000, 20646), (1110, 18600), (1116, 18500), (1125, 18352), (1147, 18000), (1200, 17205), (1240, 16650), (1332, 15500), (1395, 14800), (1480, 13950), (1488, 13875), (1500, 13764), (1550, 13320), (1665, 12400), (1776, 11625), (1800, 11470), (1850, 11160), (1860, 11100), (2000, 10323), (2220, 9300), (2232, 9250), (2250, 9176), (2294, 9000), (2325, 8880), (2480, 8325), (2664, 7750), (2775, 7440), (2790, 7400), (2960, 6975), (3000, 6882), (3100, 6660), (3330, 6200), (3441, 6000), (3600, 5735), (3700, 5580), (3720, 5550), (3875, 5328), (4440, 4650), (4464, 4625), (4500, 4588)]