81489240

素因数分解:

$2^3\times 3^4\times 5^1\times 7^1\times {\mathrm{3593}}^1$

素因数の和:3623

約数の個数: 160

約数和(自身を含む): 313109280

約数和(自身を除く): 231620040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 252, 270, 280, 315, 324, 360, 378, 405, 420, 504, 540, 567, 630, 648, 756, 810, 840, 945, 1080, 1134, 1260, 1512, 1620, 1890, 2268, 2520, 2835, 3240, 3593, 3780, 4536, 5670, 7186, 7560, 10779, 11340, 14372, 17965, 21558, 22680, 25151, 28744, 32337, 35930, 43116, 50302, 53895, 64674, 71860, 75453, 86232, 97011, 100604, 107790, 125755, 129348, 143720, 150906, 161685, 194022, 201208, 215580, 226359, 251510, 258696, 291033, 301812, 323370, 377265, 388044, 431160, 452718, 485055, 503020, 582066, 603624, 646740, 679077, 754530, 776088, 905436, 970110, 1006040, 1131795, 1164132, 1293480, 1358154, 1455165, 1509060, 1810872, 1940220, 2037231, 2263590, 2328264, 2716308, 2910330, 3018120, 3395385, 3880440, 4074462, 4527180, 5432616, 5820660, 6790770, 8148924, 9054360, 10186155, 11641320, 13581540, 16297848, 20372310, 27163080, 40744620, 81489240]

約数ペア:

[(1, 81489240), (2, 40744620), (3, 27163080), (4, 20372310), (5, 16297848), (6, 13581540), (7, 11641320), (8, 10186155), (9, 9054360), (10, 8148924), (12, 6790770), (14, 5820660), (15, 5432616), (18, 4527180), (20, 4074462), (21, 3880440), (24, 3395385), (27, 3018120), (28, 2910330), (30, 2716308), (35, 2328264), (36, 2263590), (40, 2037231), (42, 1940220), (45, 1810872), (54, 1509060), (56, 1455165), (60, 1358154), (63, 1293480), (70, 1164132), (72, 1131795), (81, 1006040), (84, 970110), (90, 905436), (105, 776088), (108, 754530), (120, 679077), (126, 646740), (135, 603624), (140, 582066), (162, 503020), (168, 485055), (180, 452718), (189, 431160), (210, 388044), (216, 377265), (252, 323370), (270, 301812), (280, 291033), (315, 258696), (324, 251510), (360, 226359), (378, 215580), (405, 201208), (420, 194022), (504, 161685), (540, 150906), (567, 143720), (630, 129348), (648, 125755), (756, 107790), (810, 100604), (840, 97011), (945, 86232), (1080, 75453), (1134, 71860), (1260, 64674), (1512, 53895), (1620, 50302), (1890, 43116), (2268, 35930), (2520, 32337), (2835, 28744), (3240, 25151), (3593, 22680), (3780, 21558), (4536, 17965), (5670, 14372), (7186, 11340), (7560, 10779)]