20940149760

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{41}}^2\times {\mathrm{811}}^1$

素因数の和:921

約数の個数: 264

約数和(自身を含む): 68733805728

約数和(自身を除く): 47793655968

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 41, 48, 60, 64, 80, 82, 96, 120, 123, 128, 160, 164, 192, 205, 240, 246, 256, 320, 328, 384, 410, 480, 492, 512, 615, 640, 656, 768, 811, 820, 960, 984, 1024, 1230, 1280, 1312, 1536, 1622, 1640, 1681, 1920, 1968, 2433, 2460, 2560, 2624, 3072, 3244, 3280, 3362, 3840, 3936, 4055, 4866, 4920, 5043, 5120, 5248, 6488, 6560, 6724, 7680, 7872, 8110, 8405, 9732, 9840, 10086, 10496, 12165, 12976, 13120, 13448, 15360, 15744, 16220, 16810, 19464, 19680, 20172, 20992, 24330, 25215, 25952, 26240, 26896, 31488, 32440, 33251, 33620, 38928, 39360, 40344, 41984, 48660, 50430, 51904, 52480, 53792, 62976, 64880, 66502, 67240, 77856, 78720, 80688, 97320, 99753, 100860, 103808, 104960, 107584, 125952, 129760, 133004, 134480, 155712, 157440, 161376, 166255, 194640, 199506, 201720, 207616, 209920, 215168, 259520, 266008, 268960, 311424, 314880, 322752, 332510, 389280, 399012, 403440, 415232, 430336, 498765, 519040, 532016, 537920, 622848, 629760, 645504, 665020, 778560, 798024, 806880, 830464, 860672, 997530, 1038080, 1064032, 1075840, 1245696, 1291008, 1330040, 1363291, 1557120, 1596048, 1613760, 1721344, 1995060, 2076160, 2128064, 2151680, 2491392, 2582016, 2660080, 2726582, 3114240, 3192096, 3227520, 3990120, 4089873, 4152320, 4256128, 4303360, 5164032, 5320160, 5453164, 6228480, 6384192, 6455040, 6816455, 7980240, 8179746, 8512256, 8606720, 10640320, 10906328, 12456960, 12768384, 12910080, 13632910, 15960480, 16359492, 17024512, 20449365, 21280640, 21812656, 25536768, 25820160, 27265820, 31920960, 32718984, 34049024, 40898730, 42561280, 43625312, 51073536, 54531640, 63841920, 65437968, 81797460, 85122560, 87250624, 102147072, 109063280, 127683840, 130875936, 163594920, 170245120, 174501248, 218126560, 255367680, 261751872, 327189840, 349002496, 436253120, 510735360, 523503744, 654379680, 698004992, 872506240, 1047007488, 1308759360, 1396009984, 1745012480, 2094014976, 2617518720, 3490024960, 4188029952, 5235037440, 6980049920, 10470074880, 20940149760]

約数ペア:

[(1, 20940149760), (2, 10470074880), (3, 6980049920), (4, 5235037440), (5, 4188029952), (6, 3490024960), (8, 2617518720), (10, 2094014976), (12, 1745012480), (15, 1396009984), (16, 1308759360), (20, 1047007488), (24, 872506240), (30, 698004992), (32, 654379680), (40, 523503744), (41, 510735360), (48, 436253120), (60, 349002496), (64, 327189840), (80, 261751872), (82, 255367680), (96, 218126560), (120, 174501248), (123, 170245120), (128, 163594920), (160, 130875936), (164, 127683840), (192, 109063280), (205, 102147072), (240, 87250624), (246, 85122560), (256, 81797460), (320, 65437968), (328, 63841920), (384, 54531640), (410, 51073536), (480, 43625312), (492, 42561280), (512, 40898730), (615, 34049024), (640, 32718984), (656, 31920960), (768, 27265820), (811, 25820160), (820, 25536768), (960, 21812656), (984, 21280640), (1024, 20449365), (1230, 17024512), (1280, 16359492), (1312, 15960480), (1536, 13632910), (1622, 12910080), (1640, 12768384), (1681, 12456960), (1920, 10906328), (1968, 10640320), (2433, 8606720), (2460, 8512256), (2560, 8179746), (2624, 7980240), (3072, 6816455), (3244, 6455040), (3280, 6384192), (3362, 6228480), (3840, 5453164), (3936, 5320160), (4055, 5164032), (4866, 4303360), (4920, 4256128), (5043, 4152320), (5120, 4089873), (5248, 3990120), (6488, 3227520), (6560, 3192096), (6724, 3114240), (7680, 2726582), (7872, 2660080), (8110, 2582016), (8405, 2491392), (9732, 2151680), (9840, 2128064), (10086, 2076160), (10496, 1995060), (12165, 1721344), (12976, 1613760), (13120, 1596048), (13448, 1557120), (15360, 1363291), (15744, 1330040), (16220, 1291008), (16810, 1245696), (19464, 1075840), (19680, 1064032), (20172, 1038080), (20992, 997530), (24330, 860672), (25215, 830464), (25952, 806880), (26240, 798024), (26896, 778560), (31488, 665020), (32440, 645504), (33251, 629760), (33620, 622848), (38928, 537920), (39360, 532016), (40344, 519040), (41984, 498765), (48660, 430336), (50430, 415232), (51904, 403440), (52480, 399012), (53792, 389280), (62976, 332510), (64880, 322752), (66502, 314880), (67240, 311424), (77856, 268960), (78720, 266008), (80688, 259520), (97320, 215168), (99753, 209920), (100860, 207616), (103808, 201720), (104960, 199506), (107584, 194640), (125952, 166255), (129760, 161376), (133004, 157440), (134480, 155712)]