21028328280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{439}}^1$

素因数の和:671

約数の個数: 384

約数和(自身を含む): 74131200000

約数和(自身を除く): 53102871720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 47, 57, 60, 72, 76, 90, 94, 95, 114, 120, 141, 149, 152, 171, 180, 188, 190, 228, 235, 282, 285, 298, 342, 360, 376, 380, 423, 439, 447, 456, 470, 564, 570, 596, 684, 705, 745, 760, 846, 855, 878, 893, 894, 940, 1128, 1140, 1192, 1317, 1341, 1368, 1410, 1490, 1692, 1710, 1756, 1786, 1788, 1880, 2115, 2195, 2235, 2280, 2634, 2679, 2682, 2820, 2831, 2980, 3384, 3420, 3512, 3572, 3576, 3951, 4230, 4390, 4465, 4470, 5268, 5358, 5364, 5640, 5662, 5960, 6585, 6705, 6840, 7003, 7144, 7902, 8037, 8341, 8460, 8493, 8780, 8930, 8940, 10536, 10716, 10728, 11324, 13170, 13395, 13410, 14006, 14155, 15804, 16074, 16682, 16920, 16986, 17560, 17860, 17880, 19755, 20633, 21009, 21432, 22648, 25023, 25479, 26340, 26790, 26820, 28012, 28310, 31608, 32148, 33364, 33972, 35015, 35720, 39510, 40185, 41266, 41705, 42018, 42465, 50046, 50958, 52680, 53580, 53640, 56024, 56620, 61899, 63027, 64296, 65411, 66728, 67944, 70030, 75069, 79020, 80370, 82532, 83410, 84036, 84930, 100092, 101916, 103165, 105045, 107160, 113240, 123798, 125115, 126054, 127395, 130822, 133057, 140060, 150138, 158040, 160740, 165064, 166820, 168072, 169860, 185697, 196233, 200184, 203832, 206330, 210090, 247596, 250230, 252108, 254790, 261644, 266114, 280120, 300276, 309495, 315135, 321480, 327055, 333640, 339720, 371394, 375345, 392027, 392466, 399171, 412660, 420180, 495192, 500460, 504216, 509580, 523288, 532228, 588699, 600552, 618990, 630270, 654110, 665285, 742788, 750690, 784054, 784932, 798342, 825320, 840360, 928485, 981165, 1000920, 1019160, 1064456, 1176081, 1177398, 1197513, 1237980, 1242809, 1260540, 1308220, 1330570, 1485576, 1501380, 1568108, 1569864, 1596684, 1856970, 1960135, 1962330, 1995855, 2352162, 2354796, 2395026, 2475960, 2485618, 2521080, 2616440, 2661140, 2943495, 3002760, 3074317, 3136216, 3193368, 3528243, 3713940, 3728427, 3920270, 3924660, 3991710, 4704324, 4709592, 4790052, 4971236, 5322280, 5880405, 5886990, 5987565, 6148634, 6214045, 7056486, 7427880, 7456854, 7840540, 7849320, 7983420, 9222951, 9408648, 9580104, 9942472, 11185281, 11760810, 11773980, 11975130, 12297268, 12428090, 14112972, 14913708, 15371585, 15681080, 15966840, 17641215, 18445902, 18642135, 22370562, 23521620, 23547960, 23950260, 24594536, 24856180, 27668853, 28225944, 29827416, 30743170, 35282430, 36891804, 37284270, 44741124, 46114755, 47043240, 47900520, 49712360, 55337706, 55926405, 58412023, 61486340, 70564860, 73783608, 74568540, 89482248, 92229510, 110675412, 111852810, 116824046, 122972680, 138344265, 141129720, 149137080, 175236069, 184459020, 221350824, 223705620, 233648092, 276688530, 292060115, 350472138, 368918040, 447411240, 467296184, 525708207, 553377060, 584120230, 700944276, 876180345, 1051416414, 1106754120, 1168240460, 1401888552, 1752360690, 2102832828, 2336480920, 2628541035, 3504721380, 4205665656, 5257082070, 7009442760, 10514164140, 21028328280]

約数ペア:

[(1, 21028328280), (2, 10514164140), (3, 7009442760), (4, 5257082070), (5, 4205665656), (6, 3504721380), (8, 2628541035), (9, 2336480920), (10, 2102832828), (12, 1752360690), (15, 1401888552), (18, 1168240460), (19, 1106754120), (20, 1051416414), (24, 876180345), (30, 700944276), (36, 584120230), (38, 553377060), (40, 525708207), (45, 467296184), (47, 447411240), (57, 368918040), (60, 350472138), (72, 292060115), (76, 276688530), (90, 233648092), (94, 223705620), (95, 221350824), (114, 184459020), (120, 175236069), (141, 149137080), (149, 141129720), (152, 138344265), (171, 122972680), (180, 116824046), (188, 111852810), (190, 110675412), (228, 92229510), (235, 89482248), (282, 74568540), (285, 73783608), (298, 70564860), (342, 61486340), (360, 58412023), (376, 55926405), (380, 55337706), (423, 49712360), (439, 47900520), (447, 47043240), (456, 46114755), (470, 44741124), (564, 37284270), (570, 36891804), (596, 35282430), (684, 30743170), (705, 29827416), (745, 28225944), (760, 27668853), (846, 24856180), (855, 24594536), (878, 23950260), (893, 23547960), (894, 23521620), (940, 22370562), (1128, 18642135), (1140, 18445902), (1192, 17641215), (1317, 15966840), (1341, 15681080), (1368, 15371585), (1410, 14913708), (1490, 14112972), (1692, 12428090), (1710, 12297268), (1756, 11975130), (1786, 11773980), (1788, 11760810), (1880, 11185281), (2115, 9942472), (2195, 9580104), (2235, 9408648), (2280, 9222951), (2634, 7983420), (2679, 7849320), (2682, 7840540), (2820, 7456854), (2831, 7427880), (2980, 7056486), (3384, 6214045), (3420, 6148634), (3512, 5987565), (3572, 5886990), (3576, 5880405), (3951, 5322280), (4230, 4971236), (4390, 4790052), (4465, 4709592), (4470, 4704324), (5268, 3991710), (5358, 3924660), (5364, 3920270), (5640, 3728427), (5662, 3713940), (5960, 3528243), (6585, 3193368), (6705, 3136216), (6840, 3074317), (7003, 3002760), (7144, 2943495), (7902, 2661140), (8037, 2616440), (8341, 2521080), (8460, 2485618), (8493, 2475960), (8780, 2395026), (8930, 2354796), (8940, 2352162), (10536, 1995855), (10716, 1962330), (10728, 1960135), (11324, 1856970), (13170, 1596684), (13395, 1569864), (13410, 1568108), (14006, 1501380), (14155, 1485576), (15804, 1330570), (16074, 1308220), (16682, 1260540), (16920, 1242809), (16986, 1237980), (17560, 1197513), (17860, 1177398), (17880, 1176081), (19755, 1064456), (20633, 1019160), (21009, 1000920), (21432, 981165), (22648, 928485), (25023, 840360), (25479, 825320), (26340, 798342), (26790, 784932), (26820, 784054), (28012, 750690), (28310, 742788), (31608, 665285), (32148, 654110), (33364, 630270), (33972, 618990), (35015, 600552), (35720, 588699), (39510, 532228), (40185, 523288), (41266, 509580), (41705, 504216), (42018, 500460), (42465, 495192), (50046, 420180), (50958, 412660), (52680, 399171), (53580, 392466), (53640, 392027), (56024, 375345), (56620, 371394), (61899, 339720), (63027, 333640), (64296, 327055), (65411, 321480), (66728, 315135), (67944, 309495), (70030, 300276), (75069, 280120), (79020, 266114), (80370, 261644), (82532, 254790), (83410, 252108), (84036, 250230), (84930, 247596), (100092, 210090), (101916, 206330), (103165, 203832), (105045, 200184), (107160, 196233), (113240, 185697), (123798, 169860), (125115, 168072), (126054, 166820), (127395, 165064), (130822, 160740), (133057, 158040), (140060, 150138)]