20138087840

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{7177}}^1$

素因数の和:7295

約数の個数: 192

約数和(自身を含む): 54699805440

約数和(自身を除く): 34561717600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 65, 71, 76, 80, 95, 104, 130, 142, 152, 160, 190, 208, 247, 260, 284, 304, 355, 380, 416, 494, 520, 568, 608, 710, 760, 923, 988, 1040, 1136, 1235, 1349, 1420, 1520, 1846, 1976, 2080, 2272, 2470, 2698, 2840, 3040, 3692, 3952, 4615, 4940, 5396, 5680, 6745, 7177, 7384, 7904, 9230, 9880, 10792, 11360, 13490, 14354, 14768, 17537, 18460, 19760, 21584, 26980, 28708, 29536, 35074, 35885, 36920, 39520, 43168, 53960, 57416, 70148, 71770, 73840, 87685, 93301, 107920, 114832, 136363, 140296, 143540, 147680, 175370, 186602, 215840, 229664, 272726, 280592, 287080, 350740, 373204, 466505, 509567, 545452, 561184, 574160, 681815, 701480, 746408, 933010, 1019134, 1090904, 1148320, 1363630, 1402960, 1492816, 1772719, 1866020, 2038268, 2181808, 2547835, 2727260, 2805920, 2985632, 3545438, 3732040, 4076536, 4363616, 5095670, 5454520, 6624371, 7090876, 7464080, 8153072, 8863595, 9681773, 10191340, 10909040, 13248742, 14181752, 14928160, 16306144, 17727190, 19363546, 20382680, 21818080, 26497484, 28363504, 33121855, 35454380, 38727092, 40765360, 48408865, 52994968, 56727008, 66243710, 70908760, 77454184, 81530720, 96817730, 105989936, 125863049, 132487420, 141817520, 154908368, 193635460, 211979872, 251726098, 264974840, 283635040, 309816736, 387270920, 503452196, 529949680, 629315245, 774541840, 1006904392, 1059899360, 1258630490, 1549083680, 2013808784, 2517260980, 4027617568, 5034521960, 10069043920, 20138087840]

約数ペア:

[(1, 20138087840), (2, 10069043920), (4, 5034521960), (5, 4027617568), (8, 2517260980), (10, 2013808784), (13, 1549083680), (16, 1258630490), (19, 1059899360), (20, 1006904392), (26, 774541840), (32, 629315245), (38, 529949680), (40, 503452196), (52, 387270920), (65, 309816736), (71, 283635040), (76, 264974840), (80, 251726098), (95, 211979872), (104, 193635460), (130, 154908368), (142, 141817520), (152, 132487420), (160, 125863049), (190, 105989936), (208, 96817730), (247, 81530720), (260, 77454184), (284, 70908760), (304, 66243710), (355, 56727008), (380, 52994968), (416, 48408865), (494, 40765360), (520, 38727092), (568, 35454380), (608, 33121855), (710, 28363504), (760, 26497484), (923, 21818080), (988, 20382680), (1040, 19363546), (1136, 17727190), (1235, 16306144), (1349, 14928160), (1420, 14181752), (1520, 13248742), (1846, 10909040), (1976, 10191340), (2080, 9681773), (2272, 8863595), (2470, 8153072), (2698, 7464080), (2840, 7090876), (3040, 6624371), (3692, 5454520), (3952, 5095670), (4615, 4363616), (4940, 4076536), (5396, 3732040), (5680, 3545438), (6745, 2985632), (7177, 2805920), (7384, 2727260), (7904, 2547835), (9230, 2181808), (9880, 2038268), (10792, 1866020), (11360, 1772719), (13490, 1492816), (14354, 1402960), (14768, 1363630), (17537, 1148320), (18460, 1090904), (19760, 1019134), (21584, 933010), (26980, 746408), (28708, 701480), (29536, 681815), (35074, 574160), (35885, 561184), (36920, 545452), (39520, 509567), (43168, 466505), (53960, 373204), (57416, 350740), (70148, 287080), (71770, 280592), (73840, 272726), (87685, 229664), (93301, 215840), (107920, 186602), (114832, 175370), (136363, 147680), (140296, 143540)]