20817251640

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1\times {\mathrm{977}}^1$

素因数の和:1287

約数の個数: 256

約数和(自身を含む): 70486416000

約数和(自身を除く): 49669164360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 109, 120, 135, 180, 181, 216, 218, 270, 327, 360, 362, 436, 540, 543, 545, 654, 724, 872, 905, 977, 981, 1080, 1086, 1090, 1308, 1448, 1629, 1635, 1810, 1954, 1962, 2172, 2180, 2616, 2715, 2931, 2943, 3258, 3270, 3620, 3908, 3924, 4344, 4360, 4885, 4887, 4905, 5430, 5862, 5886, 6516, 6540, 7240, 7816, 7848, 8145, 8793, 9770, 9774, 9810, 10860, 11724, 11772, 13032, 13080, 14655, 14715, 16290, 17586, 19540, 19548, 19620, 19729, 21720, 23448, 23544, 24435, 26379, 29310, 29430, 32580, 35172, 39080, 39096, 39240, 39458, 43965, 48870, 52758, 58620, 58860, 59187, 65160, 70344, 78916, 87930, 97740, 98645, 105516, 106493, 117240, 117720, 118374, 131895, 157832, 175860, 176837, 177561, 195480, 197290, 211032, 212986, 236748, 263790, 295935, 319479, 351720, 353674, 355122, 394580, 425972, 473496, 527580, 530511, 532465, 532683, 591870, 638958, 707348, 710244, 789160, 851944, 884185, 887805, 958437, 1055160, 1061022, 1064930, 1065366, 1183740, 1277916, 1414696, 1420488, 1591533, 1597395, 1768370, 1775610, 1916874, 2122044, 2129860, 2130732, 2367480, 2555832, 2652555, 2663415, 2875311, 3183066, 3194790, 3536740, 3551220, 3833748, 4244088, 4259720, 4261464, 4774599, 4792185, 5305110, 5326830, 5750622, 6366132, 6389580, 7073480, 7102440, 7667496, 7957665, 9549198, 9584370, 10610220, 10653660, 11501244, 12732264, 12779160, 14376555, 15915330, 19098396, 19168740, 19275233, 21220440, 21307320, 23002488, 23872995, 28753110, 31830660, 38196792, 38337480, 38550466, 47745990, 57506220, 57825699, 63661320, 77100932, 95491980, 96376165, 115012440, 115651398, 154201864, 173477097, 190983960, 192752330, 231302796, 289128495, 346954194, 385504660, 462605592, 520431291, 578256990, 693908388, 771009320, 867385485, 1040862582, 1156513980, 1387816776, 1734770970, 2081725164, 2313027960, 2602156455, 3469541940, 4163450328, 5204312910, 6939083880, 10408625820, 20817251640]

約数ペア:

[(1, 20817251640), (2, 10408625820), (3, 6939083880), (4, 5204312910), (5, 4163450328), (6, 3469541940), (8, 2602156455), (9, 2313027960), (10, 2081725164), (12, 1734770970), (15, 1387816776), (18, 1156513980), (20, 1040862582), (24, 867385485), (27, 771009320), (30, 693908388), (36, 578256990), (40, 520431291), (45, 462605592), (54, 385504660), (60, 346954194), (72, 289128495), (90, 231302796), (108, 192752330), (109, 190983960), (120, 173477097), (135, 154201864), (180, 115651398), (181, 115012440), (216, 96376165), (218, 95491980), (270, 77100932), (327, 63661320), (360, 57825699), (362, 57506220), (436, 47745990), (540, 38550466), (543, 38337480), (545, 38196792), (654, 31830660), (724, 28753110), (872, 23872995), (905, 23002488), (977, 21307320), (981, 21220440), (1080, 19275233), (1086, 19168740), (1090, 19098396), (1308, 15915330), (1448, 14376555), (1629, 12779160), (1635, 12732264), (1810, 11501244), (1954, 10653660), (1962, 10610220), (2172, 9584370), (2180, 9549198), (2616, 7957665), (2715, 7667496), (2931, 7102440), (2943, 7073480), (3258, 6389580), (3270, 6366132), (3620, 5750622), (3908, 5326830), (3924, 5305110), (4344, 4792185), (4360, 4774599), (4885, 4261464), (4887, 4259720), (4905, 4244088), (5430, 3833748), (5862, 3551220), (5886, 3536740), (6516, 3194790), (6540, 3183066), (7240, 2875311), (7816, 2663415), (7848, 2652555), (8145, 2555832), (8793, 2367480), (9770, 2130732), (9774, 2129860), (9810, 2122044), (10860, 1916874), (11724, 1775610), (11772, 1768370), (13032, 1597395), (13080, 1591533), (14655, 1420488), (14715, 1414696), (16290, 1277916), (17586, 1183740), (19540, 1065366), (19548, 1064930), (19620, 1061022), (19729, 1055160), (21720, 958437), (23448, 887805), (23544, 884185), (24435, 851944), (26379, 789160), (29310, 710244), (29430, 707348), (32580, 638958), (35172, 591870), (39080, 532683), (39096, 532465), (39240, 530511), (39458, 527580), (43965, 473496), (48870, 425972), (52758, 394580), (58620, 355122), (58860, 353674), (59187, 351720), (65160, 319479), (70344, 295935), (78916, 263790), (87930, 236748), (97740, 212986), (98645, 211032), (105516, 197290), (106493, 195480), (117240, 177561), (117720, 176837), (118374, 175860), (131895, 157832)]