21000832000

素因数分解:

$2^{10}\times 5^3\times {\mathrm{191}}^1\times {\mathrm{859}}^1$

素因数の和:1085

約数の個数: 176

約数和(自身を含む): 52728099840

約数和(自身を除く): 31727267840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 191, 200, 250, 256, 320, 382, 400, 500, 512, 640, 764, 800, 859, 955, 1000, 1024, 1280, 1528, 1600, 1718, 1910, 2000, 2560, 3056, 3200, 3436, 3820, 4000, 4295, 4775, 5120, 6112, 6400, 6872, 7640, 8000, 8590, 9550, 12224, 12800, 13744, 15280, 16000, 17180, 19100, 21475, 23875, 24448, 25600, 27488, 30560, 32000, 34360, 38200, 42950, 47750, 48896, 54976, 61120, 64000, 68720, 76400, 85900, 95500, 97792, 107375, 109952, 122240, 128000, 137440, 152800, 164069, 171800, 191000, 195584, 214750, 219904, 244480, 274880, 305600, 328138, 343600, 382000, 429500, 439808, 488960, 549760, 611200, 656276, 687200, 764000, 820345, 859000, 879616, 977920, 1099520, 1222400, 1312552, 1374400, 1528000, 1640690, 1718000, 2199040, 2444800, 2625104, 2748800, 3056000, 3281380, 3436000, 4101725, 4398080, 4889600, 5250208, 5497600, 6112000, 6562760, 6872000, 8203450, 10500416, 10995200, 12224000, 13125520, 13744000, 16406900, 20508625, 21000832, 21990400, 24448000, 26251040, 27488000, 32813800, 41017250, 42001664, 52502080, 54976000, 65627600, 82034500, 84003328, 105004160, 109952000, 131255200, 164069000, 168006656, 210008320, 262510400, 328138000, 420016640, 525020800, 656276000, 840033280, 1050041600, 1312552000, 2100083200, 2625104000, 4200166400, 5250208000, 10500416000, 21000832000]

約数ペア:

[(1, 21000832000), (2, 10500416000), (4, 5250208000), (5, 4200166400), (8, 2625104000), (10, 2100083200), (16, 1312552000), (20, 1050041600), (25, 840033280), (32, 656276000), (40, 525020800), (50, 420016640), (64, 328138000), (80, 262510400), (100, 210008320), (125, 168006656), (128, 164069000), (160, 131255200), (191, 109952000), (200, 105004160), (250, 84003328), (256, 82034500), (320, 65627600), (382, 54976000), (400, 52502080), (500, 42001664), (512, 41017250), (640, 32813800), (764, 27488000), (800, 26251040), (859, 24448000), (955, 21990400), (1000, 21000832), (1024, 20508625), (1280, 16406900), (1528, 13744000), (1600, 13125520), (1718, 12224000), (1910, 10995200), (2000, 10500416), (2560, 8203450), (3056, 6872000), (3200, 6562760), (3436, 6112000), (3820, 5497600), (4000, 5250208), (4295, 4889600), (4775, 4398080), (5120, 4101725), (6112, 3436000), (6400, 3281380), (6872, 3056000), (7640, 2748800), (8000, 2625104), (8590, 2444800), (9550, 2199040), (12224, 1718000), (12800, 1640690), (13744, 1528000), (15280, 1374400), (16000, 1312552), (17180, 1222400), (19100, 1099520), (21475, 977920), (23875, 879616), (24448, 859000), (25600, 820345), (27488, 764000), (30560, 687200), (32000, 656276), (34360, 611200), (38200, 549760), (42950, 488960), (47750, 439808), (48896, 429500), (54976, 382000), (61120, 343600), (64000, 328138), (68720, 305600), (76400, 274880), (85900, 244480), (95500, 219904), (97792, 214750), (107375, 195584), (109952, 191000), (122240, 171800), (128000, 164069), (137440, 152800)]