81245430

素因数分解:

$2^1\times 3^4\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:145

約数の個数: 240

約数和(自身を含む): 268155360

約数和(自身を除く): 186909930

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 27, 30, 35, 42, 45, 46, 49, 54, 63, 69, 70, 81, 89, 90, 98, 105, 115, 126, 135, 138, 147, 161, 162, 178, 189, 207, 210, 230, 245, 267, 270, 294, 315, 322, 345, 378, 405, 414, 441, 445, 483, 490, 534, 567, 621, 623, 630, 690, 735, 801, 805, 810, 882, 890, 945, 966, 1035, 1127, 1134, 1242, 1246, 1323, 1335, 1449, 1470, 1602, 1610, 1863, 1869, 1890, 2047, 2070, 2205, 2254, 2403, 2415, 2646, 2670, 2835, 2898, 3105, 3115, 3381, 3726, 3738, 3969, 4005, 4094, 4347, 4361, 4410, 4806, 4830, 5607, 5635, 5670, 6141, 6210, 6230, 6615, 6762, 7209, 7245, 7938, 8010, 8694, 8722, 9315, 9345, 10143, 10235, 11214, 11270, 12015, 12282, 13041, 13083, 13230, 14329, 14418, 14490, 16821, 16905, 18423, 18630, 18690, 19845, 20286, 20470, 21735, 21805, 24030, 26082, 26166, 28035, 28658, 30429, 30705, 33642, 33810, 36045, 36846, 39249, 39690, 42987, 43470, 43610, 50463, 50715, 55269, 56070, 60858, 61410, 65205, 65415, 71645, 72090, 78498, 84105, 85974, 91287, 92115, 100303, 100926, 101430, 110538, 117747, 128961, 130410, 130830, 143290, 152145, 165807, 168210, 182574, 184230, 196245, 200606, 214935, 235494, 252315, 257922, 276345, 300909, 304290, 331614, 353241, 386883, 392490, 429870, 456435, 501515, 504630, 552690, 588735, 601818, 644805, 706482, 773766, 829035, 902727, 912870, 1003030, 1160649, 1177470, 1289610, 1504545, 1658070, 1766205, 1805454, 1934415, 2321298, 2708181, 3009090, 3532410, 3868830, 4513635, 5416362, 5803245, 8124543, 9027270, 11606490, 13540905, 16249086, 27081810, 40622715, 81245430]

約数ペア:

[(1, 81245430), (2, 40622715), (3, 27081810), (5, 16249086), (6, 13540905), (7, 11606490), (9, 9027270), (10, 8124543), (14, 5803245), (15, 5416362), (18, 4513635), (21, 3868830), (23, 3532410), (27, 3009090), (30, 2708181), (35, 2321298), (42, 1934415), (45, 1805454), (46, 1766205), (49, 1658070), (54, 1504545), (63, 1289610), (69, 1177470), (70, 1160649), (81, 1003030), (89, 912870), (90, 902727), (98, 829035), (105, 773766), (115, 706482), (126, 644805), (135, 601818), (138, 588735), (147, 552690), (161, 504630), (162, 501515), (178, 456435), (189, 429870), (207, 392490), (210, 386883), (230, 353241), (245, 331614), (267, 304290), (270, 300909), (294, 276345), (315, 257922), (322, 252315), (345, 235494), (378, 214935), (405, 200606), (414, 196245), (441, 184230), (445, 182574), (483, 168210), (490, 165807), (534, 152145), (567, 143290), (621, 130830), (623, 130410), (630, 128961), (690, 117747), (735, 110538), (801, 101430), (805, 100926), (810, 100303), (882, 92115), (890, 91287), (945, 85974), (966, 84105), (1035, 78498), (1127, 72090), (1134, 71645), (1242, 65415), (1246, 65205), (1323, 61410), (1335, 60858), (1449, 56070), (1470, 55269), (1602, 50715), (1610, 50463), (1863, 43610), (1869, 43470), (1890, 42987), (2047, 39690), (2070, 39249), (2205, 36846), (2254, 36045), (2403, 33810), (2415, 33642), (2646, 30705), (2670, 30429), (2835, 28658), (2898, 28035), (3105, 26166), (3115, 26082), (3381, 24030), (3726, 21805), (3738, 21735), (3969, 20470), (4005, 20286), (4094, 19845), (4347, 18690), (4361, 18630), (4410, 18423), (4806, 16905), (4830, 16821), (5607, 14490), (5635, 14418), (5670, 14329), (6141, 13230), (6210, 13083), (6230, 13041), (6615, 12282), (6762, 12015), (7209, 11270), (7245, 11214), (7938, 10235), (8010, 10143), (8694, 9345), (8722, 9315)]