21009968000

素因数分解:

$2^7\times 5^3\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1721}}^1$

素因数の和:1866

約数の個数: 256

約数和(自身を含む): 60281020800

約数和(自身を除く): 39271052800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 109, 112, 125, 128, 140, 160, 175, 200, 218, 224, 250, 280, 320, 350, 400, 436, 448, 500, 545, 560, 640, 700, 763, 800, 872, 875, 896, 1000, 1090, 1120, 1400, 1526, 1600, 1721, 1744, 1750, 2000, 2180, 2240, 2725, 2800, 3052, 3200, 3442, 3488, 3500, 3815, 4000, 4360, 4480, 5450, 5600, 6104, 6884, 6976, 7000, 7630, 8000, 8605, 8720, 10900, 11200, 12047, 12208, 13625, 13768, 13952, 14000, 15260, 16000, 17210, 17440, 19075, 21800, 22400, 24094, 24416, 27250, 27536, 28000, 30520, 34420, 34880, 38150, 43025, 43600, 48188, 48832, 54500, 55072, 56000, 60235, 61040, 68840, 69760, 76300, 86050, 87200, 95375, 96376, 97664, 109000, 110144, 112000, 120470, 122080, 137680, 152600, 172100, 174400, 187589, 190750, 192752, 215125, 218000, 220288, 240940, 244160, 275360, 301175, 305200, 344200, 348800, 375178, 381500, 385504, 430250, 436000, 481880, 488320, 550720, 602350, 610400, 688400, 750356, 763000, 771008, 860500, 872000, 937945, 963760, 1101440, 1204700, 1220800, 1313123, 1376800, 1500712, 1505875, 1526000, 1542016, 1721000, 1744000, 1875890, 1927520, 2409400, 2441600, 2626246, 2753600, 3001424, 3011750, 3052000, 3442000, 3751780, 3855040, 4689725, 4818800, 5252492, 5507200, 6002848, 6023500, 6104000, 6565615, 6884000, 7503560, 7710080, 9379450, 9637600, 10504984, 12005696, 12047000, 12208000, 13131230, 13768000, 15007120, 18758900, 19275200, 21009968, 23448625, 24011392, 24094000, 26262460, 27536000, 30014240, 32828075, 37517800, 38550400, 42019936, 46897250, 48188000, 52524920, 60028480, 65656150, 75035600, 84039872, 93794500, 96376000, 105049840, 120056960, 131312300, 150071200, 164140375, 168079744, 187589000, 192752000, 210099680, 262624600, 300142400, 328280750, 375178000, 420199360, 525249200, 600284800, 656561500, 750356000, 840398720, 1050498400, 1313123000, 1500712000, 2100996800, 2626246000, 3001424000, 4201993600, 5252492000, 10504984000, 21009968000]

約数ペア:

[(1, 21009968000), (2, 10504984000), (4, 5252492000), (5, 4201993600), (7, 3001424000), (8, 2626246000), (10, 2100996800), (14, 1500712000), (16, 1313123000), (20, 1050498400), (25, 840398720), (28, 750356000), (32, 656561500), (35, 600284800), (40, 525249200), (50, 420199360), (56, 375178000), (64, 328280750), (70, 300142400), (80, 262624600), (100, 210099680), (109, 192752000), (112, 187589000), (125, 168079744), (128, 164140375), (140, 150071200), (160, 131312300), (175, 120056960), (200, 105049840), (218, 96376000), (224, 93794500), (250, 84039872), (280, 75035600), (320, 65656150), (350, 60028480), (400, 52524920), (436, 48188000), (448, 46897250), (500, 42019936), (545, 38550400), (560, 37517800), (640, 32828075), (700, 30014240), (763, 27536000), (800, 26262460), (872, 24094000), (875, 24011392), (896, 23448625), (1000, 21009968), (1090, 19275200), (1120, 18758900), (1400, 15007120), (1526, 13768000), (1600, 13131230), (1721, 12208000), (1744, 12047000), (1750, 12005696), (2000, 10504984), (2180, 9637600), (2240, 9379450), (2725, 7710080), (2800, 7503560), (3052, 6884000), (3200, 6565615), (3442, 6104000), (3488, 6023500), (3500, 6002848), (3815, 5507200), (4000, 5252492), (4360, 4818800), (4480, 4689725), (5450, 3855040), (5600, 3751780), (6104, 3442000), (6884, 3052000), (6976, 3011750), (7000, 3001424), (7630, 2753600), (8000, 2626246), (8605, 2441600), (8720, 2409400), (10900, 1927520), (11200, 1875890), (12047, 1744000), (12208, 1721000), (13625, 1542016), (13768, 1526000), (13952, 1505875), (14000, 1500712), (15260, 1376800), (16000, 1313123), (17210, 1220800), (17440, 1204700), (19075, 1101440), (21800, 963760), (22400, 937945), (24094, 872000), (24416, 860500), (27250, 771008), (27536, 763000), (28000, 750356), (30520, 688400), (34420, 610400), (34880, 602350), (38150, 550720), (43025, 488320), (43600, 481880), (48188, 436000), (48832, 430250), (54500, 385504), (55072, 381500), (56000, 375178), (60235, 348800), (61040, 344200), (68840, 305200), (69760, 301175), (76300, 275360), (86050, 244160), (87200, 240940), (95375, 220288), (96376, 218000), (97664, 215125), (109000, 192752), (110144, 190750), (112000, 187589), (120470, 174400), (122080, 172100), (137680, 152600)]