20187418720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{271}}^1\times {\mathrm{293}}^1$

素因数の和:813

約数の個数: 192

約数和(自身を含む): 55135696896

約数和(自身を除く): 34948278176

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 227, 271, 280, 293, 454, 542, 560, 586, 908, 1084, 1120, 1135, 1172, 1355, 1465, 1589, 1816, 1897, 2051, 2168, 2270, 2344, 2710, 2930, 3178, 3632, 3794, 4102, 4336, 4540, 4688, 5420, 5860, 6356, 7264, 7588, 7945, 8204, 8672, 9080, 9376, 9485, 10255, 10840, 11720, 12712, 15176, 15890, 16408, 18160, 18970, 20510, 21680, 23440, 25424, 30352, 31780, 32816, 36320, 37940, 41020, 43360, 46880, 50848, 60704, 61517, 63560, 65632, 66511, 75880, 79403, 82040, 123034, 127120, 133022, 151760, 158806, 164080, 246068, 254240, 266044, 303520, 307585, 317612, 328160, 332555, 397015, 430619, 465577, 492136, 532088, 555821, 615170, 635224, 665110, 794030, 861238, 931154, 984272, 1064176, 1111642, 1230340, 1270448, 1330220, 1588060, 1722476, 1862308, 1968544, 2128352, 2153095, 2223284, 2327885, 2460680, 2540896, 2660440, 2779105, 3176120, 3444952, 3724616, 4306190, 4446568, 4655770, 4921360, 5320880, 5558210, 6352240, 6889904, 7449232, 8612380, 8893136, 9311540, 9842720, 10641760, 11116420, 12704480, 13779808, 14898464, 17224760, 17786272, 18024481, 18623080, 22232840, 34449520, 36048962, 37246160, 44465680, 68899040, 72097924, 74492320, 88931360, 90122405, 126171367, 144195848, 180244810, 252342734, 288391696, 360489620, 504685468, 576783392, 630856835, 720979240, 1009370936, 1261713670, 1441958480, 2018741872, 2523427340, 2883916960, 4037483744, 5046854680, 10093709360, 20187418720]

約数ペア:

[(1, 20187418720), (2, 10093709360), (4, 5046854680), (5, 4037483744), (7, 2883916960), (8, 2523427340), (10, 2018741872), (14, 1441958480), (16, 1261713670), (20, 1009370936), (28, 720979240), (32, 630856835), (35, 576783392), (40, 504685468), (56, 360489620), (70, 288391696), (80, 252342734), (112, 180244810), (140, 144195848), (160, 126171367), (224, 90122405), (227, 88931360), (271, 74492320), (280, 72097924), (293, 68899040), (454, 44465680), (542, 37246160), (560, 36048962), (586, 34449520), (908, 22232840), (1084, 18623080), (1120, 18024481), (1135, 17786272), (1172, 17224760), (1355, 14898464), (1465, 13779808), (1589, 12704480), (1816, 11116420), (1897, 10641760), (2051, 9842720), (2168, 9311540), (2270, 8893136), (2344, 8612380), (2710, 7449232), (2930, 6889904), (3178, 6352240), (3632, 5558210), (3794, 5320880), (4102, 4921360), (4336, 4655770), (4540, 4446568), (4688, 4306190), (5420, 3724616), (5860, 3444952), (6356, 3176120), (7264, 2779105), (7588, 2660440), (7945, 2540896), (8204, 2460680), (8672, 2327885), (9080, 2223284), (9376, 2153095), (9485, 2128352), (10255, 1968544), (10840, 1862308), (11720, 1722476), (12712, 1588060), (15176, 1330220), (15890, 1270448), (16408, 1230340), (18160, 1111642), (18970, 1064176), (20510, 984272), (21680, 931154), (23440, 861238), (25424, 794030), (30352, 665110), (31780, 635224), (32816, 615170), (36320, 555821), (37940, 532088), (41020, 492136), (43360, 465577), (46880, 430619), (50848, 397015), (60704, 332555), (61517, 328160), (63560, 317612), (65632, 307585), (66511, 303520), (75880, 266044), (79403, 254240), (82040, 246068), (123034, 164080), (127120, 158806), (133022, 151760)]