81378360

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{751}}^1$

素因数の和:818

約数の個数: 192

約数和(自身を含む): 309703680

約数和(自身を除く): 228325320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 43, 45, 56, 60, 63, 70, 72, 84, 86, 90, 105, 120, 126, 129, 140, 168, 172, 180, 210, 215, 252, 258, 280, 301, 315, 344, 360, 387, 420, 430, 504, 516, 602, 630, 645, 751, 774, 840, 860, 903, 1032, 1204, 1260, 1290, 1502, 1505, 1548, 1720, 1806, 1935, 2253, 2408, 2520, 2580, 2709, 3004, 3010, 3096, 3612, 3755, 3870, 4506, 4515, 5160, 5257, 5418, 6008, 6020, 6759, 7224, 7510, 7740, 9012, 9030, 10514, 10836, 11265, 12040, 13518, 13545, 15020, 15480, 15771, 18024, 18060, 21028, 21672, 22530, 26285, 27036, 27090, 30040, 31542, 32293, 33795, 36120, 42056, 45060, 47313, 52570, 54072, 54180, 63084, 64586, 67590, 78855, 90120, 94626, 96879, 105140, 108360, 126168, 129172, 135180, 157710, 161465, 189252, 193758, 210280, 226051, 236565, 258344, 270360, 290637, 315420, 322930, 378504, 387516, 452102, 473130, 484395, 581274, 630840, 645860, 678153, 775032, 904204, 946260, 968790, 1130255, 1162548, 1291720, 1356306, 1453185, 1808408, 1892520, 1937580, 2034459, 2260510, 2325096, 2712612, 2906370, 3390765, 3875160, 4068918, 4521020, 5425224, 5812740, 6781530, 8137836, 9042040, 10172295, 11625480, 13563060, 16275672, 20344590, 27126120, 40689180, 81378360]

約数ペア:

[(1, 81378360), (2, 40689180), (3, 27126120), (4, 20344590), (5, 16275672), (6, 13563060), (7, 11625480), (8, 10172295), (9, 9042040), (10, 8137836), (12, 6781530), (14, 5812740), (15, 5425224), (18, 4521020), (20, 4068918), (21, 3875160), (24, 3390765), (28, 2906370), (30, 2712612), (35, 2325096), (36, 2260510), (40, 2034459), (42, 1937580), (43, 1892520), (45, 1808408), (56, 1453185), (60, 1356306), (63, 1291720), (70, 1162548), (72, 1130255), (84, 968790), (86, 946260), (90, 904204), (105, 775032), (120, 678153), (126, 645860), (129, 630840), (140, 581274), (168, 484395), (172, 473130), (180, 452102), (210, 387516), (215, 378504), (252, 322930), (258, 315420), (280, 290637), (301, 270360), (315, 258344), (344, 236565), (360, 226051), (387, 210280), (420, 193758), (430, 189252), (504, 161465), (516, 157710), (602, 135180), (630, 129172), (645, 126168), (751, 108360), (774, 105140), (840, 96879), (860, 94626), (903, 90120), (1032, 78855), (1204, 67590), (1260, 64586), (1290, 63084), (1502, 54180), (1505, 54072), (1548, 52570), (1720, 47313), (1806, 45060), (1935, 42056), (2253, 36120), (2408, 33795), (2520, 32293), (2580, 31542), (2709, 30040), (3004, 27090), (3010, 27036), (3096, 26285), (3612, 22530), (3755, 21672), (3870, 21028), (4506, 18060), (4515, 18024), (5160, 15771), (5257, 15480), (5418, 15020), (6008, 13545), (6020, 13518), (6759, 12040), (7224, 11265), (7510, 10836), (7740, 10514), (9012, 9030)]