20428800000

素因数分解:

$2^{14}\times 3^1\times 5^5\times 7^1\times {\mathrm{19}}^1$

素因数の和:82

約数の個数: 720

約数和(自身を含む): 81912257280

約数和(自身を除く): 61483457280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 25, 28, 30, 32, 35, 38, 40, 42, 48, 50, 56, 57, 60, 64, 70, 75, 76, 80, 84, 95, 96, 100, 105, 112, 114, 120, 125, 128, 133, 140, 150, 152, 160, 168, 175, 190, 192, 200, 210, 224, 228, 240, 250, 256, 266, 280, 285, 300, 304, 320, 336, 350, 375, 380, 384, 399, 400, 420, 448, 456, 475, 480, 500, 512, 525, 532, 560, 570, 600, 608, 625, 640, 665, 672, 700, 750, 760, 768, 798, 800, 840, 875, 896, 912, 950, 960, 1000, 1024, 1050, 1064, 1120, 1140, 1200, 1216, 1250, 1280, 1330, 1344, 1400, 1425, 1500, 1520, 1536, 1596, 1600, 1680, 1750, 1792, 1824, 1875, 1900, 1920, 1995, 2000, 2048, 2100, 2128, 2240, 2280, 2375, 2400, 2432, 2500, 2560, 2625, 2660, 2688, 2800, 2850, 3000, 3040, 3072, 3125, 3192, 3200, 3325, 3360, 3500, 3584, 3648, 3750, 3800, 3840, 3990, 4000, 4096, 4200, 4256, 4375, 4480, 4560, 4750, 4800, 4864, 5000, 5120, 5250, 5320, 5376, 5600, 5700, 6000, 6080, 6144, 6250, 6384, 6400, 6650, 6720, 7000, 7125, 7168, 7296, 7500, 7600, 7680, 7980, 8000, 8192, 8400, 8512, 8750, 8960, 9120, 9375, 9500, 9600, 9728, 9975, 10000, 10240, 10500, 10640, 10752, 11200, 11400, 11875, 12000, 12160, 12288, 12500, 12768, 12800, 13125, 13300, 13440, 14000, 14250, 14336, 14592, 15000, 15200, 15360, 15960, 16000, 16384, 16625, 16800, 17024, 17500, 17920, 18240, 18750, 19000, 19200, 19456, 19950, 20000, 20480, 21000, 21280, 21504, 21875, 22400, 22800, 23750, 24000, 24320, 24576, 25000, 25536, 25600, 26250, 26600, 26880, 28000, 28500, 28672, 29184, 30000, 30400, 30720, 31920, 32000, 33250, 33600, 34048, 35000, 35625, 35840, 36480, 37500, 38000, 38400, 38912, 39900, 40000, 40960, 42000, 42560, 43008, 43750, 44800, 45600, 47500, 48000, 48640, 49152, 49875, 50000, 51072, 51200, 52500, 53200, 53760, 56000, 57000, 57344, 58368, 59375, 60000, 60800, 61440, 63840, 64000, 65625, 66500, 67200, 68096, 70000, 71250, 71680, 72960, 75000, 76000, 76800, 77824, 79800, 80000, 81920, 83125, 84000, 85120, 86016, 87500, 89600, 91200, 95000, 96000, 97280, 99750, 100000, 102144, 102400, 105000, 106400, 107520, 112000, 114000, 114688, 116736, 118750, 120000, 121600, 122880, 127680, 128000, 131250, 133000, 134400, 136192, 140000, 142500, 143360, 145920, 150000, 152000, 153600, 155648, 159600, 160000, 166250, 168000, 170240, 172032, 175000, 178125, 179200, 182400, 190000, 192000, 194560, 199500, 200000, 204288, 204800, 210000, 212800, 215040, 224000, 228000, 233472, 237500, 240000, 243200, 245760, 249375, 255360, 256000, 262500, 266000, 268800, 272384, 280000, 285000, 286720, 291840, 300000, 304000, 307200, 311296, 319200, 320000, 332500, 336000, 340480, 344064, 350000, 356250, 358400, 364800, 380000, 384000, 389120, 399000, 400000, 408576, 409600, 415625, 420000, 425600, 430080, 448000, 456000, 466944, 475000, 480000, 486400, 498750, 510720, 512000, 525000, 532000, 537600, 544768, 560000, 570000, 573440, 583680, 600000, 608000, 614400, 638400, 640000, 665000, 672000, 680960, 700000, 712500, 716800, 729600, 760000, 768000, 778240, 798000, 800000, 817152, 831250, 840000, 851200, 860160, 896000, 912000, 933888, 950000, 960000, 972800, 997500, 1021440, 1024000, 1050000, 1064000, 1075200, 1089536, 1120000, 1140000, 1167360, 1200000, 1216000, 1228800, 1246875, 1276800, 1280000, 1330000, 1344000, 1361920, 1400000, 1425000, 1433600, 1459200, 1520000, 1536000, 1556480, 1596000, 1600000, 1634304, 1662500, 1680000, 1702400, 1720320, 1792000, 1824000, 1900000, 1920000, 1945600, 1995000, 2042880, 2048000, 2100000, 2128000, 2150400, 2179072, 2240000, 2280000, 2334720, 2400000, 2432000, 2493750, 2553600, 2560000, 2660000, 2688000, 2723840, 2800000, 2850000, 2867200, 2918400, 3040000, 3072000, 3192000, 3200000, 3268608, 3325000, 3360000, 3404800, 3584000, 3648000, 3800000, 3840000, 3891200, 3990000, 4085760, 4200000, 4256000, 4300800, 4480000, 4560000, 4669440, 4800000, 4864000, 4987500, 5107200, 5120000, 5320000, 5376000, 5447680, 5600000, 5700000, 5836800, 6080000, 6144000, 6384000, 6400000, 6537216, 6650000, 6720000, 6809600, 7168000, 7296000, 7600000, 7680000, 7782400, 7980000, 8171520, 8400000, 8512000, 8601600, 8960000, 9120000, 9600000, 9728000, 9975000, 10214400, 10240000, 10640000, 10752000, 10895360, 11200000, 11400000, 11673600, 12160000, 12768000, 12800000, 13300000, 13440000, 13619200, 14336000, 14592000, 15200000, 15360000, 15960000, 16343040, 16800000, 17024000, 17920000, 18240000, 19200000, 19456000, 19950000, 20428800, 21280000, 21504000, 22400000, 22800000, 23347200, 24320000, 25536000, 25600000, 26600000, 26880000, 27238400, 29184000, 30400000, 30720000, 31920000, 32686080, 33600000, 34048000, 35840000, 36480000, 38400000, 38912000, 39900000, 40857600, 42560000, 43008000, 44800000, 45600000, 48640000, 51072000, 51200000, 53200000, 53760000, 54476800, 58368000, 60800000, 63840000, 67200000, 68096000, 71680000, 72960000, 76800000, 79800000, 81715200, 85120000, 89600000, 91200000, 97280000, 102144000, 106400000, 107520000, 116736000, 121600000, 127680000, 134400000, 136192000, 145920000, 153600000, 159600000, 163430400, 170240000, 179200000, 182400000, 194560000, 204288000, 212800000, 215040000, 243200000, 255360000, 268800000, 272384000, 291840000, 319200000, 340480000, 358400000, 364800000, 408576000, 425600000, 486400000, 510720000, 537600000, 583680000, 638400000, 680960000, 729600000, 817152000, 851200000, 972800000, 1021440000, 1075200000, 1276800000, 1361920000, 1459200000, 1702400000, 2042880000, 2553600000, 2918400000, 3404800000, 4085760000, 5107200000, 6809600000, 10214400000, 20428800000]

約数ペア:

[(1, 20428800000), (2, 10214400000), (3, 6809600000), (4, 5107200000), (5, 4085760000), (6, 3404800000), (7, 2918400000), (8, 2553600000), (10, 2042880000), (12, 1702400000), (14, 1459200000), (15, 1361920000), (16, 1276800000), (19, 1075200000), (20, 1021440000), (21, 972800000), (24, 851200000), (25, 817152000), (28, 729600000), (30, 680960000), (32, 638400000), (35, 583680000), (38, 537600000), (40, 510720000), (42, 486400000), (48, 425600000), (50, 408576000), (56, 364800000), (57, 358400000), (60, 340480000), (64, 319200000), (70, 291840000), (75, 272384000), (76, 268800000), (80, 255360000), (84, 243200000), (95, 215040000), (96, 212800000), (100, 204288000), (105, 194560000), (112, 182400000), (114, 179200000), (120, 170240000), (125, 163430400), (128, 159600000), (133, 153600000), (140, 145920000), (150, 136192000), (152, 134400000), (160, 127680000), (168, 121600000), (175, 116736000), (190, 107520000), (192, 106400000), (200, 102144000), (210, 97280000), (224, 91200000), 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(1400, 14592000), (1425, 14336000), (1500, 13619200), (1520, 13440000), (1536, 13300000), (1596, 12800000), (1600, 12768000), (1680, 12160000), (1750, 11673600), (1792, 11400000), (1824, 11200000), (1875, 10895360), (1900, 10752000), (1920, 10640000), (1995, 10240000), (2000, 10214400), (2048, 9975000), (2100, 9728000), (2128, 9600000), (2240, 9120000), (2280, 8960000), (2375, 8601600), (2400, 8512000), (2432, 8400000), (2500, 8171520), (2560, 7980000), (2625, 7782400), (2660, 7680000), (2688, 7600000), (2800, 7296000), (2850, 7168000), (3000, 6809600), (3040, 6720000), (3072, 6650000), (3125, 6537216), (3192, 6400000), (3200, 6384000), (3325, 6144000), (3360, 6080000), (3500, 5836800), (3584, 5700000), (3648, 5600000), (3750, 5447680), (3800, 5376000), (3840, 5320000), (3990, 5120000), (4000, 5107200), (4096, 4987500), (4200, 4864000), (4256, 4800000), (4375, 4669440), (4480, 4560000), (4560, 4480000), (4750, 4300800), (4800, 4256000), (4864, 4200000), (5000, 4085760), (5120, 3990000), (5250, 3891200), (5320, 3840000), (5376, 3800000), (5600, 3648000), (5700, 3584000), (6000, 3404800), (6080, 3360000), (6144, 3325000), (6250, 3268608), (6384, 3200000), (6400, 3192000), (6650, 3072000), (6720, 3040000), (7000, 2918400), (7125, 2867200), (7168, 2850000), (7296, 2800000), (7500, 2723840), (7600, 2688000), (7680, 2660000), (7980, 2560000), (8000, 2553600), (8192, 2493750), (8400, 2432000), (8512, 2400000), (8750, 2334720), (8960, 2280000), (9120, 2240000), (9375, 2179072), (9500, 2150400), (9600, 2128000), (9728, 2100000), (9975, 2048000), (10000, 2042880), (10240, 1995000), (10500, 1945600), (10640, 1920000), (10752, 1900000), (11200, 1824000), (11400, 1792000), (11875, 1720320), (12000, 1702400), (12160, 1680000), (12288, 1662500), (12500, 1634304), (12768, 1600000), (12800, 1596000), (13125, 1556480), (13300, 1536000), (13440, 1520000), (14000, 1459200), (14250, 1433600), (14336, 1425000), (14592, 1400000), (15000, 1361920), (15200, 1344000), (15360, 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