20970589080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{257371}}^1$

素因数の和:257489

約数の個数: 128

約数和(自身を含む): 72640673280

約数和(自身を除く): 51670084200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 97, 105, 120, 140, 168, 194, 210, 280, 291, 388, 420, 485, 582, 679, 776, 840, 970, 1164, 1358, 1455, 1940, 2037, 2328, 2716, 2910, 3395, 3880, 4074, 5432, 5820, 6790, 8148, 10185, 11640, 13580, 16296, 20370, 27160, 40740, 81480, 257371, 514742, 772113, 1029484, 1286855, 1544226, 1801597, 2058968, 2573710, 3088452, 3603194, 3860565, 5147420, 5404791, 6176904, 7206388, 7721130, 9007985, 10294840, 10809582, 14412776, 15442260, 18015970, 21619164, 24964987, 27023955, 30884520, 36031940, 43238328, 49929974, 54047910, 72063880, 74894961, 99859948, 108095820, 124824935, 149789922, 174754909, 199719896, 216191640, 249649870, 299579844, 349509818, 374474805, 499299740, 524264727, 599159688, 699019636, 748949610, 873774545, 998599480, 1048529454, 1398039272, 1497899220, 1747549090, 2097058908, 2621323635, 2995798440, 3495098180, 4194117816, 5242647270, 6990196360, 10485294540, 20970589080]

約数ペア:

[(1, 20970589080), (2, 10485294540), (3, 6990196360), (4, 5242647270), (5, 4194117816), (6, 3495098180), (7, 2995798440), (8, 2621323635), (10, 2097058908), (12, 1747549090), (14, 1497899220), (15, 1398039272), (20, 1048529454), (21, 998599480), (24, 873774545), (28, 748949610), (30, 699019636), (35, 599159688), (40, 524264727), (42, 499299740), (56, 374474805), (60, 349509818), (70, 299579844), (84, 249649870), (97, 216191640), (105, 199719896), (120, 174754909), (140, 149789922), (168, 124824935), (194, 108095820), (210, 99859948), (280, 74894961), (291, 72063880), (388, 54047910), (420, 49929974), (485, 43238328), (582, 36031940), (679, 30884520), (776, 27023955), (840, 24964987), (970, 21619164), (1164, 18015970), (1358, 15442260), (1455, 14412776), (1940, 10809582), (2037, 10294840), (2328, 9007985), (2716, 7721130), (2910, 7206388), (3395, 6176904), (3880, 5404791), (4074, 5147420), (5432, 3860565), (5820, 3603194), (6790, 3088452), (8148, 2573710), (10185, 2058968), (11640, 1801597), (13580, 1544226), (16296, 1286855), (20370, 1029484), (27160, 772113), (40740, 514742), (81480, 257371)]