640212000

素因数分解:

$2^5\times 3^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{1721}}^1$

素因数の和:1780

約数の個数: 192

約数和(自身を含む): 2166248448

約数和(自身を除く): 1526036448

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 31, 32, 40, 48, 50, 60, 62, 75, 80, 93, 96, 100, 120, 124, 125, 150, 155, 160, 186, 200, 240, 248, 250, 300, 310, 372, 375, 400, 465, 480, 496, 500, 600, 620, 744, 750, 775, 800, 930, 992, 1000, 1200, 1240, 1488, 1500, 1550, 1721, 1860, 2000, 2325, 2400, 2480, 2976, 3000, 3100, 3442, 3720, 3875, 4000, 4650, 4960, 5163, 6000, 6200, 6884, 7440, 7750, 8605, 9300, 10326, 11625, 12000, 12400, 13768, 14880, 15500, 17210, 18600, 20652, 23250, 24800, 25815, 27536, 31000, 34420, 37200, 41304, 43025, 46500, 51630, 53351, 55072, 62000, 68840, 74400, 82608, 86050, 93000, 103260, 106702, 124000, 129075, 137680, 160053, 165216, 172100, 186000, 206520, 213404, 215125, 258150, 266755, 275360, 320106, 344200, 372000, 413040, 426808, 430250, 516300, 533510, 640212, 645375, 688400, 800265, 826080, 853616, 860500, 1032600, 1067020, 1280424, 1290750, 1333775, 1376800, 1600530, 1707232, 1721000, 2065200, 2134040, 2560848, 2581500, 2667550, 3201060, 3442000, 4001325, 4130400, 4268080, 5121696, 5163000, 5335100, 6402120, 6668875, 6884000, 8002650, 8536160, 10326000, 10670200, 12804240, 13337750, 16005300, 20006625, 20652000, 21340400, 25608480, 26675500, 32010600, 40013250, 42680800, 53351000, 64021200, 80026500, 106702000, 128042400, 160053000, 213404000, 320106000, 640212000]

約数ペア:

[(1, 640212000), (2, 320106000), (3, 213404000), (4, 160053000), (5, 128042400), (6, 106702000), (8, 80026500), (10, 64021200), (12, 53351000), (15, 42680800), (16, 40013250), (20, 32010600), (24, 26675500), (25, 25608480), (30, 21340400), (31, 20652000), (32, 20006625), (40, 16005300), (48, 13337750), (50, 12804240), (60, 10670200), (62, 10326000), (75, 8536160), (80, 8002650), (93, 6884000), (96, 6668875), (100, 6402120), (120, 5335100), (124, 5163000), (125, 5121696), (150, 4268080), (155, 4130400), (160, 4001325), (186, 3442000), (200, 3201060), (240, 2667550), (248, 2581500), (250, 2560848), (300, 2134040), (310, 2065200), (372, 1721000), (375, 1707232), (400, 1600530), (465, 1376800), (480, 1333775), (496, 1290750), (500, 1280424), (600, 1067020), (620, 1032600), (744, 860500), (750, 853616), (775, 826080), (800, 800265), (930, 688400), (992, 645375), (1000, 640212), (1200, 533510), (1240, 516300), (1488, 430250), (1500, 426808), (1550, 413040), (1721, 372000), (1860, 344200), (2000, 320106), (2325, 275360), (2400, 266755), (2480, 258150), (2976, 215125), (3000, 213404), (3100, 206520), (3442, 186000), (3720, 172100), (3875, 165216), (4000, 160053), (4650, 137680), (4960, 129075), (5163, 124000), (6000, 106702), (6200, 103260), (6884, 93000), (7440, 86050), (7750, 82608), (8605, 74400), (9300, 68840), (10326, 62000), (11625, 55072), (12000, 53351), (12400, 51630), (13768, 46500), (14880, 43025), (15500, 41304), (17210, 37200), (18600, 34420), (20652, 31000), (23250, 27536), (24800, 25815)]