81781812

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{107}}^1\times {\mathrm{337}}^1$

素因数の和:467

約数の個数: 120

約数和(自身を含む): 247351104

約数和(自身を除く): 165569292

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 107, 108, 126, 162, 189, 214, 252, 321, 324, 337, 378, 428, 567, 642, 674, 749, 756, 963, 1011, 1134, 1284, 1348, 1498, 1926, 2022, 2247, 2268, 2359, 2889, 2996, 3033, 3852, 4044, 4494, 4718, 5778, 6066, 6741, 7077, 8667, 8988, 9099, 9436, 11556, 12132, 13482, 14154, 17334, 18198, 20223, 21231, 26964, 27297, 28308, 34668, 36059, 36396, 40446, 42462, 54594, 60669, 63693, 72118, 80892, 84924, 108177, 109188, 121338, 127386, 144236, 191079, 216354, 242676, 252413, 254772, 324531, 382158, 432708, 504826, 649062, 757239, 764316, 973593, 1009652, 1298124, 1514478, 1947186, 2271717, 2920779, 3028956, 3894372, 4543434, 5841558, 6815151, 9086868, 11683116, 13630302, 20445453, 27260604, 40890906, 81781812]

約数ペア:

[(1, 81781812), (2, 40890906), (3, 27260604), (4, 20445453), (6, 13630302), (7, 11683116), (9, 9086868), (12, 6815151), (14, 5841558), (18, 4543434), (21, 3894372), (27, 3028956), (28, 2920779), (36, 2271717), (42, 1947186), (54, 1514478), (63, 1298124), (81, 1009652), (84, 973593), (107, 764316), (108, 757239), (126, 649062), (162, 504826), (189, 432708), (214, 382158), (252, 324531), (321, 254772), (324, 252413), (337, 242676), (378, 216354), (428, 191079), (567, 144236), (642, 127386), (674, 121338), (749, 109188), (756, 108177), (963, 84924), (1011, 80892), (1134, 72118), (1284, 63693), (1348, 60669), (1498, 54594), (1926, 42462), (2022, 40446), (2247, 36396), (2268, 36059), (2359, 34668), (2889, 28308), (2996, 27297), (3033, 26964), (3852, 21231), (4044, 20223), (4494, 18198), (4718, 17334), (5778, 14154), (6066, 13482), (6741, 12132), (7077, 11556), (8667, 9436), (8988, 9099)]