81183060

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{7159}}^1$

素因数の和:7187

約数の個数: 120

約数和(自身を含む): 291096960

約数和(自身を除く): 209913900

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1890, 2268, 2835, 3780, 5670, 7159, 11340, 14318, 21477, 28636, 35795, 42954, 50113, 64431, 71590, 85908, 100226, 107385, 128862, 143180, 150339, 193293, 200452, 214770, 250565, 257724, 300678, 322155, 386586, 429540, 451017, 501130, 579879, 601356, 644310, 751695, 773172, 902034, 966465, 1002260, 1159758, 1288620, 1353051, 1503390, 1804068, 1932930, 2255085, 2319516, 2706102, 2899395, 3006780, 3865860, 4059153, 4510170, 5412204, 5798790, 6765255, 8118306, 9020340, 11597580, 13530510, 16236612, 20295765, 27061020, 40591530, 81183060]

約数ペア:

[(1, 81183060), (2, 40591530), (3, 27061020), (4, 20295765), (5, 16236612), (6, 13530510), (7, 11597580), (9, 9020340), (10, 8118306), (12, 6765255), (14, 5798790), (15, 5412204), (18, 4510170), (20, 4059153), (21, 3865860), (27, 3006780), (28, 2899395), (30, 2706102), (35, 2319516), (36, 2255085), (42, 1932930), (45, 1804068), (54, 1503390), (60, 1353051), (63, 1288620), (70, 1159758), (81, 1002260), (84, 966465), (90, 902034), (105, 773172), (108, 751695), (126, 644310), (135, 601356), (140, 579879), (162, 501130), (180, 451017), (189, 429540), (210, 386586), (252, 322155), (270, 300678), (315, 257724), (324, 250565), (378, 214770), (405, 200452), (420, 193293), (540, 150339), (567, 143180), (630, 128862), (756, 107385), (810, 100226), (945, 85908), (1134, 71590), (1260, 64431), (1620, 50113), (1890, 42954), (2268, 35795), (2835, 28636), (3780, 21477), (5670, 14318), (7159, 11340)]