21488640000

素因数分解:

$2^{13}\times 3^1\times 5^4\times {\mathrm{1399}}^1$

素因数の和:1448

約数の個数: 280

約数和(自身を含む): 71652688800

約数和(自身を除く): 50164048800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 125, 128, 150, 160, 192, 200, 240, 250, 256, 300, 320, 375, 384, 400, 480, 500, 512, 600, 625, 640, 750, 768, 800, 960, 1000, 1024, 1200, 1250, 1280, 1399, 1500, 1536, 1600, 1875, 1920, 2000, 2048, 2400, 2500, 2560, 2798, 3000, 3072, 3200, 3750, 3840, 4000, 4096, 4197, 4800, 5000, 5120, 5596, 6000, 6144, 6400, 6995, 7500, 7680, 8000, 8192, 8394, 9600, 10000, 10240, 11192, 12000, 12288, 12800, 13990, 15000, 15360, 16000, 16788, 19200, 20000, 20480, 20985, 22384, 24000, 24576, 25600, 27980, 30000, 30720, 32000, 33576, 34975, 38400, 40000, 40960, 41970, 44768, 48000, 51200, 55960, 60000, 61440, 64000, 67152, 69950, 76800, 80000, 83940, 89536, 96000, 102400, 104925, 111920, 120000, 122880, 128000, 134304, 139900, 153600, 160000, 167880, 174875, 179072, 192000, 204800, 209850, 223840, 240000, 256000, 268608, 279800, 307200, 320000, 335760, 349750, 358144, 384000, 419700, 447680, 480000, 512000, 524625, 537216, 559600, 614400, 640000, 671520, 699500, 716288, 768000, 839400, 874375, 895360, 960000, 1024000, 1049250, 1074432, 1119200, 1280000, 1343040, 1399000, 1432576, 1536000, 1678800, 1748750, 1790720, 1920000, 2098500, 2148864, 2238400, 2560000, 2623125, 2686080, 2798000, 2865152, 3072000, 3357600, 3497500, 3581440, 3840000, 4197000, 4297728, 4476800, 5120000, 5246250, 5372160, 5596000, 5730304, 6715200, 6995000, 7162880, 7680000, 8394000, 8595456, 8953600, 10492500, 10744320, 11192000, 11460608, 13430400, 13990000, 14325760, 15360000, 16788000, 17190912, 17907200, 20985000, 21488640, 22384000, 26860800, 27980000, 28651520, 33576000, 34381824, 35814400, 41970000, 42977280, 44768000, 53721600, 55960000, 57303040, 67152000, 71628800, 83940000, 85954560, 89536000, 107443200, 111920000, 134304000, 143257600, 167880000, 171909120, 179072000, 214886400, 223840000, 268608000, 286515200, 335760000, 358144000, 429772800, 447680000, 537216000, 671520000, 716288000, 859545600, 895360000, 1074432000, 1343040000, 1432576000, 1790720000, 2148864000, 2686080000, 3581440000, 4297728000, 5372160000, 7162880000, 10744320000, 21488640000]

約数ペア:

[(1, 21488640000), (2, 10744320000), (3, 7162880000), (4, 5372160000), (5, 4297728000), (6, 3581440000), (8, 2686080000), (10, 2148864000), (12, 1790720000), (15, 1432576000), (16, 1343040000), (20, 1074432000), (24, 895360000), (25, 859545600), (30, 716288000), (32, 671520000), (40, 537216000), (48, 447680000), (50, 429772800), (60, 358144000), (64, 335760000), (75, 286515200), (80, 268608000), (96, 223840000), (100, 214886400), (120, 179072000), (125, 171909120), (128, 167880000), (150, 143257600), (160, 134304000), (192, 111920000), (200, 107443200), (240, 89536000), (250, 85954560), (256, 83940000), (300, 71628800), (320, 67152000), (375, 57303040), (384, 55960000), (400, 53721600), (480, 44768000), (500, 42977280), (512, 41970000), (600, 35814400), (625, 34381824), (640, 33576000), (750, 28651520), (768, 27980000), (800, 26860800), (960, 22384000), (1000, 21488640), (1024, 20985000), (1200, 17907200), (1250, 17190912), (1280, 16788000), (1399, 15360000), (1500, 14325760), (1536, 13990000), (1600, 13430400), (1875, 11460608), (1920, 11192000), (2000, 10744320), (2048, 10492500), (2400, 8953600), (2500, 8595456), (2560, 8394000), (2798, 7680000), (3000, 7162880), (3072, 6995000), (3200, 6715200), (3750, 5730304), (3840, 5596000), (4000, 5372160), (4096, 5246250), (4197, 5120000), (4800, 4476800), (5000, 4297728), (5120, 4197000), (5596, 3840000), (6000, 3581440), (6144, 3497500), (6400, 3357600), (6995, 3072000), (7500, 2865152), (7680, 2798000), (8000, 2686080), (8192, 2623125), (8394, 2560000), (9600, 2238400), (10000, 2148864), (10240, 2098500), (11192, 1920000), (12000, 1790720), (12288, 1748750), (12800, 1678800), (13990, 1536000), (15000, 1432576), (15360, 1399000), (16000, 1343040), (16788, 1280000), (19200, 1119200), (20000, 1074432), (20480, 1049250), (20985, 1024000), (22384, 960000), (24000, 895360), (24576, 874375), (25600, 839400), (27980, 768000), (30000, 716288), (30720, 699500), (32000, 671520), (33576, 640000), (34975, 614400), (38400, 559600), (40000, 537216), (40960, 524625), (41970, 512000), (44768, 480000), (48000, 447680), (51200, 419700), (55960, 384000), (60000, 358144), (61440, 349750), (64000, 335760), (67152, 320000), (69950, 307200), (76800, 279800), (80000, 268608), (83940, 256000), (89536, 240000), (96000, 223840), (102400, 209850), (104925, 204800), (111920, 192000), (120000, 179072), (122880, 174875), (128000, 167880), (134304, 160000), (139900, 153600)]