20758640640

素因数分解:

$2^{11}\times 3^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1297}}^1$

素因数の和:1848

約数の個数: 192

約数和(自身を含む): 66590203680

約数和(自身を除く): 45831563040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 521, 640, 768, 960, 1024, 1042, 1280, 1297, 1536, 1563, 1920, 2048, 2084, 2560, 2594, 2605, 3072, 3126, 3840, 3891, 4168, 5120, 5188, 5210, 6144, 6252, 6485, 7680, 7782, 7815, 8336, 10240, 10376, 10420, 12504, 12970, 15360, 15564, 15630, 16672, 19455, 20752, 20840, 25008, 25940, 30720, 31128, 31260, 33344, 38910, 41504, 41680, 50016, 51880, 62256, 62520, 66688, 77820, 83008, 83360, 100032, 103760, 124512, 125040, 133376, 155640, 166016, 166720, 200064, 207520, 249024, 250080, 266752, 311280, 332032, 333440, 400128, 415040, 498048, 500160, 533504, 622560, 664064, 666880, 675737, 800256, 830080, 996096, 1000320, 1067008, 1245120, 1328128, 1333760, 1351474, 1600512, 1660160, 1992192, 2000640, 2027211, 2490240, 2656256, 2667520, 2702948, 3201024, 3320320, 3378685, 3984384, 4001280, 4054422, 4980480, 5335040, 5405896, 6640640, 6757370, 7968768, 8002560, 8108844, 9960960, 10136055, 10811792, 13281280, 13514740, 16005120, 16217688, 19921920, 20272110, 21623584, 27029480, 32435376, 39843840, 40544220, 43247168, 54058960, 64870752, 81088440, 86494336, 108117920, 129741504, 162176880, 172988672, 216235840, 259483008, 324353760, 345977344, 432471680, 518966016, 648707520, 691954688, 864943360, 1037932032, 1297415040, 1383909376, 1729886720, 2075864064, 2594830080, 3459773440, 4151728128, 5189660160, 6919546880, 10379320320, 20758640640]

約数ペア:

[(1, 20758640640), (2, 10379320320), (3, 6919546880), (4, 5189660160), (5, 4151728128), (6, 3459773440), (8, 2594830080), (10, 2075864064), (12, 1729886720), (15, 1383909376), (16, 1297415040), (20, 1037932032), (24, 864943360), (30, 691954688), (32, 648707520), (40, 518966016), (48, 432471680), (60, 345977344), (64, 324353760), (80, 259483008), (96, 216235840), (120, 172988672), (128, 162176880), (160, 129741504), (192, 108117920), (240, 86494336), (256, 81088440), (320, 64870752), (384, 54058960), (480, 43247168), (512, 40544220), (521, 39843840), (640, 32435376), (768, 27029480), (960, 21623584), (1024, 20272110), (1042, 19921920), (1280, 16217688), (1297, 16005120), (1536, 13514740), (1563, 13281280), (1920, 10811792), (2048, 10136055), (2084, 9960960), (2560, 8108844), (2594, 8002560), (2605, 7968768), (3072, 6757370), (3126, 6640640), (3840, 5405896), (3891, 5335040), (4168, 4980480), (5120, 4054422), (5188, 4001280), (5210, 3984384), (6144, 3378685), (6252, 3320320), (6485, 3201024), (7680, 2702948), (7782, 2667520), (7815, 2656256), (8336, 2490240), (10240, 2027211), (10376, 2000640), (10420, 1992192), (12504, 1660160), (12970, 1600512), (15360, 1351474), (15564, 1333760), (15630, 1328128), (16672, 1245120), (19455, 1067008), (20752, 1000320), (20840, 996096), (25008, 830080), (25940, 800256), (30720, 675737), (31128, 666880), (31260, 664064), (33344, 622560), (38910, 533504), (41504, 500160), (41680, 498048), (50016, 415040), (51880, 400128), (62256, 333440), (62520, 332032), (66688, 311280), (77820, 266752), (83008, 250080), (83360, 249024), (100032, 207520), (103760, 200064), (124512, 166720), (125040, 166016), (133376, 155640)]