20512488000

素因数分解:

$2^6\times 3^1\times 5^3\times {\mathrm{647}}^1\times {\mathrm{1321}}^1$

素因数の和:1998

約数の個数: 224

約数和(自身を含む): 67888274688

約数和(自身を除く): 47375786688

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 125, 150, 160, 192, 200, 240, 250, 300, 320, 375, 400, 480, 500, 600, 647, 750, 800, 960, 1000, 1200, 1294, 1321, 1500, 1600, 1941, 2000, 2400, 2588, 2642, 3000, 3235, 3882, 3963, 4000, 4800, 5176, 5284, 6000, 6470, 6605, 7764, 7926, 8000, 9705, 10352, 10568, 12000, 12940, 13210, 15528, 15852, 16175, 19410, 19815, 20704, 21136, 24000, 25880, 26420, 31056, 31704, 32350, 33025, 38820, 39630, 41408, 42272, 48525, 51760, 52840, 62112, 63408, 64700, 66050, 77640, 79260, 80875, 84544, 97050, 99075, 103520, 105680, 124224, 126816, 129400, 132100, 155280, 158520, 161750, 165125, 194100, 198150, 207040, 211360, 242625, 253632, 258800, 264200, 310560, 317040, 323500, 330250, 388200, 396300, 422720, 485250, 495375, 517600, 528400, 621120, 634080, 647000, 660500, 776400, 792600, 854687, 970500, 990750, 1035200, 1056800, 1268160, 1294000, 1321000, 1552800, 1585200, 1709374, 1941000, 1981500, 2113600, 2564061, 2588000, 2642000, 3105600, 3170400, 3418748, 3882000, 3963000, 4273435, 5128122, 5176000, 5284000, 6340800, 6837496, 7764000, 7926000, 8546870, 10256244, 10568000, 12820305, 13674992, 15528000, 15852000, 17093740, 20512488, 21367175, 25640610, 27349984, 31704000, 34187480, 41024976, 42734350, 51281220, 54699968, 64101525, 68374960, 82049952, 85468700, 102562440, 106835875, 128203050, 136749920, 164099904, 170937400, 205124880, 213671750, 256406100, 273499840, 320507625, 341874800, 410249760, 427343500, 512812200, 641015250, 683749600, 820499520, 854687000, 1025624400, 1282030500, 1367499200, 1709374000, 2051248800, 2564061000, 3418748000, 4102497600, 5128122000, 6837496000, 10256244000, 20512488000]

約数ペア:

[(1, 20512488000), (2, 10256244000), (3, 6837496000), (4, 5128122000), (5, 4102497600), (6, 3418748000), (8, 2564061000), (10, 2051248800), (12, 1709374000), (15, 1367499200), (16, 1282030500), (20, 1025624400), (24, 854687000), (25, 820499520), (30, 683749600), (32, 641015250), (40, 512812200), (48, 427343500), (50, 410249760), (60, 341874800), (64, 320507625), (75, 273499840), (80, 256406100), (96, 213671750), (100, 205124880), (120, 170937400), (125, 164099904), (150, 136749920), (160, 128203050), (192, 106835875), (200, 102562440), (240, 85468700), (250, 82049952), (300, 68374960), (320, 64101525), (375, 54699968), (400, 51281220), (480, 42734350), (500, 41024976), (600, 34187480), (647, 31704000), (750, 27349984), (800, 25640610), (960, 21367175), (1000, 20512488), (1200, 17093740), (1294, 15852000), (1321, 15528000), (1500, 13674992), (1600, 12820305), (1941, 10568000), (2000, 10256244), (2400, 8546870), (2588, 7926000), (2642, 7764000), (3000, 6837496), (3235, 6340800), (3882, 5284000), (3963, 5176000), (4000, 5128122), (4800, 4273435), (5176, 3963000), (5284, 3882000), (6000, 3418748), (6470, 3170400), (6605, 3105600), (7764, 2642000), (7926, 2588000), (8000, 2564061), (9705, 2113600), (10352, 1981500), (10568, 1941000), (12000, 1709374), (12940, 1585200), (13210, 1552800), (15528, 1321000), (15852, 1294000), (16175, 1268160), (19410, 1056800), (19815, 1035200), (20704, 990750), (21136, 970500), (24000, 854687), (25880, 792600), (26420, 776400), (31056, 660500), (31704, 647000), (32350, 634080), (33025, 621120), (38820, 528400), (39630, 517600), (41408, 495375), (42272, 485250), (48525, 422720), (51760, 396300), (52840, 388200), (62112, 330250), (63408, 323500), (64700, 317040), (66050, 310560), (77640, 264200), (79260, 258800), (80875, 253632), (84544, 242625), (97050, 211360), (99075, 207040), (103520, 198150), (105680, 194100), (124224, 165125), (126816, 161750), (129400, 158520), (132100, 155280)]