640008000

素因数分解:

$2^6\times 3^3\times 5^3\times {\mathrm{2963}}^1$

素因数の和:2999

約数の個数: 224

約数和(自身を含む): 2348910720

約数和(自身を除く): 1708902720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 32, 36, 40, 45, 48, 50, 54, 60, 64, 72, 75, 80, 90, 96, 100, 108, 120, 125, 135, 144, 150, 160, 180, 192, 200, 216, 225, 240, 250, 270, 288, 300, 320, 360, 375, 400, 432, 450, 480, 500, 540, 576, 600, 675, 720, 750, 800, 864, 900, 960, 1000, 1080, 1125, 1200, 1350, 1440, 1500, 1600, 1728, 1800, 2000, 2160, 2250, 2400, 2700, 2880, 2963, 3000, 3375, 3600, 4000, 4320, 4500, 4800, 5400, 5926, 6000, 6750, 7200, 8000, 8640, 8889, 9000, 10800, 11852, 12000, 13500, 14400, 14815, 17778, 18000, 21600, 23704, 24000, 26667, 27000, 29630, 35556, 36000, 43200, 44445, 47408, 53334, 54000, 59260, 71112, 72000, 74075, 80001, 88890, 94816, 106668, 108000, 118520, 133335, 142224, 148150, 160002, 177780, 189632, 213336, 216000, 222225, 237040, 266670, 284448, 296300, 320004, 355560, 370375, 400005, 426672, 444450, 474080, 533340, 568896, 592600, 640008, 666675, 711120, 740750, 800010, 853344, 888900, 948160, 1066680, 1111125, 1185200, 1280016, 1333350, 1422240, 1481500, 1600020, 1706688, 1777800, 2000025, 2133360, 2222250, 2370400, 2560032, 2666700, 2844480, 2963000, 3200040, 3333375, 3555600, 4000050, 4266720, 4444500, 4740800, 5120064, 5333400, 5926000, 6400080, 6666750, 7111200, 8000100, 8533440, 8889000, 10000125, 10666800, 11852000, 12800160, 13333500, 14222400, 16000200, 17778000, 20000250, 21333600, 23704000, 25600320, 26667000, 32000400, 35556000, 40000500, 42667200, 53334000, 64000800, 71112000, 80001000, 106668000, 128001600, 160002000, 213336000, 320004000, 640008000]

約数ペア:

[(1, 640008000), (2, 320004000), (3, 213336000), (4, 160002000), (5, 128001600), (6, 106668000), (8, 80001000), (9, 71112000), (10, 64000800), (12, 53334000), (15, 42667200), (16, 40000500), (18, 35556000), (20, 32000400), (24, 26667000), (25, 25600320), (27, 23704000), (30, 21333600), (32, 20000250), (36, 17778000), (40, 16000200), (45, 14222400), (48, 13333500), (50, 12800160), (54, 11852000), (60, 10666800), (64, 10000125), (72, 8889000), (75, 8533440), (80, 8000100), (90, 7111200), (96, 6666750), (100, 6400080), (108, 5926000), (120, 5333400), (125, 5120064), (135, 4740800), (144, 4444500), (150, 4266720), (160, 4000050), (180, 3555600), (192, 3333375), (200, 3200040), (216, 2963000), (225, 2844480), (240, 2666700), (250, 2560032), (270, 2370400), (288, 2222250), (300, 2133360), (320, 2000025), (360, 1777800), (375, 1706688), (400, 1600020), (432, 1481500), (450, 1422240), (480, 1333350), (500, 1280016), (540, 1185200), (576, 1111125), (600, 1066680), (675, 948160), (720, 888900), (750, 853344), (800, 800010), (864, 740750), (900, 711120), (960, 666675), (1000, 640008), (1080, 592600), (1125, 568896), (1200, 533340), (1350, 474080), (1440, 444450), (1500, 426672), (1600, 400005), (1728, 370375), (1800, 355560), (2000, 320004), (2160, 296300), (2250, 284448), (2400, 266670), (2700, 237040), (2880, 222225), (2963, 216000), (3000, 213336), (3375, 189632), (3600, 177780), (4000, 160002), (4320, 148150), (4500, 142224), (4800, 133335), (5400, 118520), (5926, 108000), (6000, 106668), (6750, 94816), (7200, 88890), (8000, 80001), (8640, 74075), (8889, 72000), (9000, 71112), (10800, 59260), (11852, 54000), (12000, 53334), (13500, 47408), (14400, 44445), (14815, 43200), (17778, 36000), (18000, 35556), (21600, 29630), (23704, 27000), (24000, 26667)]