20657408000

素因数分解:

$2^{11}\times 5^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:224

約数の個数: 384

約数和(自身を含む): 56420582400

約数和(自身を除く): 35763174400

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 31, 32, 38, 40, 50, 62, 64, 76, 80, 95, 100, 124, 125, 128, 137, 152, 155, 160, 190, 200, 248, 250, 256, 274, 304, 310, 320, 380, 400, 475, 496, 500, 512, 548, 589, 608, 620, 640, 685, 760, 775, 800, 950, 992, 1000, 1024, 1096, 1178, 1216, 1240, 1280, 1370, 1520, 1550, 1600, 1900, 1984, 2000, 2048, 2192, 2356, 2375, 2432, 2480, 2560, 2603, 2740, 2945, 3040, 3100, 3200, 3425, 3800, 3875, 3968, 4000, 4247, 4384, 4712, 4750, 4864, 4960, 5120, 5206, 5480, 5890, 6080, 6200, 6400, 6850, 7600, 7750, 7936, 8000, 8494, 8768, 9424, 9500, 9728, 9920, 10240, 10412, 10960, 11780, 12160, 12400, 12800, 13015, 13700, 14725, 15200, 15500, 15872, 16000, 16988, 17125, 17536, 18848, 19000, 19456, 19840, 20824, 21235, 21920, 23560, 24320, 24800, 25600, 26030, 27400, 29450, 30400, 31000, 31744, 32000, 33976, 34250, 35072, 37696, 38000, 38912, 39680, 41648, 42470, 43840, 47120, 48640, 49600, 51200, 52060, 54800, 58900, 60800, 62000, 63488, 64000, 65075, 67952, 68500, 70144, 73625, 75392, 76000, 79360, 80693, 83296, 84940, 87680, 94240, 97280, 99200, 104120, 106175, 109600, 117800, 121600, 124000, 128000, 130150, 135904, 137000, 140288, 147250, 150784, 152000, 158720, 161386, 166592, 169880, 175360, 188480, 194560, 198400, 208240, 212350, 219200, 235600, 243200, 248000, 256000, 260300, 271808, 274000, 280576, 294500, 301568, 304000, 317440, 322772, 325375, 333184, 339760, 350720, 376960, 396800, 403465, 416480, 424700, 438400, 471200, 486400, 496000, 520600, 530875, 543616, 548000, 589000, 603136, 608000, 645544, 650750, 666368, 679520, 701440, 753920, 793600, 806930, 832960, 849400, 876800, 942400, 972800, 992000, 1041200, 1061750, 1087232, 1096000, 1178000, 1206272, 1216000, 1291088, 1301500, 1332736, 1359040, 1402880, 1507840, 1587200, 1613860, 1665920, 1698800, 1753600, 1884800, 1984000, 2017325, 2082400, 2123500, 2174464, 2192000, 2356000, 2432000, 2582176, 2603000, 2665472, 2718080, 3015680, 3227720, 3331840, 3397600, 3507200, 3769600, 3968000, 4034650, 4164800, 4247000, 4348928, 4384000, 4712000, 4864000, 5164352, 5206000, 5330944, 5436160, 6031360, 6455440, 6663680, 6795200, 7014400, 7539200, 7936000, 8069300, 8329600, 8494000, 8697856, 8768000, 9424000, 10086625, 10328704, 10412000, 10872320, 12910880, 13327360, 13590400, 15078400, 16138600, 16659200, 16988000, 17536000, 18848000, 20173250, 20657408, 20824000, 21744640, 25821760, 26654720, 27180800, 30156800, 32277200, 33318400, 33976000, 35072000, 37696000, 40346500, 41314816, 41648000, 43489280, 51643520, 54361600, 64554400, 66636800, 67952000, 75392000, 80693000, 82629632, 83296000, 103287040, 108723200, 129108800, 133273600, 135904000, 150784000, 161386000, 165259264, 166592000, 206574080, 217446400, 258217600, 271808000, 322772000, 333184000, 413148160, 516435200, 543616000, 645544000, 666368000, 826296320, 1032870400, 1087232000, 1291088000, 2065740800, 2582176000, 4131481600, 5164352000, 10328704000, 20657408000]

約数ペア:

[(1, 20657408000), (2, 10328704000), (4, 5164352000), (5, 4131481600), (8, 2582176000), (10, 2065740800), (16, 1291088000), (19, 1087232000), (20, 1032870400), (25, 826296320), (31, 666368000), (32, 645544000), (38, 543616000), (40, 516435200), (50, 413148160), (62, 333184000), (64, 322772000), (76, 271808000), (80, 258217600), (95, 217446400), (100, 206574080), (124, 166592000), (125, 165259264), (128, 161386000), (137, 150784000), (152, 135904000), (155, 133273600), (160, 129108800), (190, 108723200), (200, 103287040), (248, 83296000), (250, 82629632), (256, 80693000), (274, 75392000), (304, 67952000), (310, 66636800), (320, 64554400), (380, 54361600), (400, 51643520), (475, 43489280), (496, 41648000), (500, 41314816), (512, 40346500), (548, 37696000), (589, 35072000), (608, 33976000), (620, 33318400), (640, 32277200), (685, 30156800), (760, 27180800), (775, 26654720), (800, 25821760), (950, 21744640), (992, 20824000), (1000, 20657408), (1024, 20173250), (1096, 18848000), (1178, 17536000), (1216, 16988000), (1240, 16659200), (1280, 16138600), (1370, 15078400), (1520, 13590400), (1550, 13327360), (1600, 12910880), (1900, 10872320), (1984, 10412000), (2000, 10328704), (2048, 10086625), (2192, 9424000), (2356, 8768000), (2375, 8697856), (2432, 8494000), (2480, 8329600), (2560, 8069300), (2603, 7936000), (2740, 7539200), (2945, 7014400), (3040, 6795200), (3100, 6663680), (3200, 6455440), (3425, 6031360), (3800, 5436160), (3875, 5330944), (3968, 5206000), (4000, 5164352), (4247, 4864000), (4384, 4712000), (4712, 4384000), (4750, 4348928), (4864, 4247000), (4960, 4164800), (5120, 4034650), (5206, 3968000), (5480, 3769600), (5890, 3507200), (6080, 3397600), (6200, 3331840), (6400, 3227720), (6850, 3015680), (7600, 2718080), (7750, 2665472), (7936, 2603000), (8000, 2582176), (8494, 2432000), (8768, 2356000), (9424, 2192000), (9500, 2174464), (9728, 2123500), (9920, 2082400), (10240, 2017325), (10412, 1984000), (10960, 1884800), (11780, 1753600), (12160, 1698800), (12400, 1665920), (12800, 1613860), (13015, 1587200), (13700, 1507840), (14725, 1402880), (15200, 1359040), (15500, 1332736), (15872, 1301500), (16000, 1291088), (16988, 1216000), (17125, 1206272), (17536, 1178000), (18848, 1096000), (19000, 1087232), (19456, 1061750), (19840, 1041200), (20824, 992000), (21235, 972800), (21920, 942400), (23560, 876800), (24320, 849400), (24800, 832960), (25600, 806930), (26030, 793600), (27400, 753920), (29450, 701440), (30400, 679520), (31000, 666368), (31744, 650750), (32000, 645544), (33976, 608000), (34250, 603136), (35072, 589000), (37696, 548000), (38000, 543616), (38912, 530875), (39680, 520600), (41648, 496000), (42470, 486400), (43840, 471200), (47120, 438400), (48640, 424700), (49600, 416480), (51200, 403465), (52060, 396800), (54800, 376960), (58900, 350720), (60800, 339760), (62000, 333184), (63488, 325375), (64000, 322772), (65075, 317440), (67952, 304000), (68500, 301568), (70144, 294500), (73625, 280576), (75392, 274000), (76000, 271808), (79360, 260300), (80693, 256000), (83296, 248000), (84940, 243200), (87680, 235600), (94240, 219200), (97280, 212350), (99200, 208240), (104120, 198400), (106175, 194560), (109600, 188480), (117800, 175360), (121600, 169880), (124000, 166592), (128000, 161386), (130150, 158720), (135904, 152000), (137000, 150784), (140288, 147250)]