87654771

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^2$

素因数の和:110

約数の個数: 72

約数和(自身を含む): 151698960

約数和(自身を除く): 64044189

約数列:

[1, 3, 9, 17, 19, 23, 27, 51, 57, 69, 153, 171, 207, 323, 361, 391, 437, 459, 513, 529, 621, 969, 1083, 1173, 1311, 1587, 2907, 3249, 3519, 3933, 4761, 6137, 7429, 8303, 8721, 8993, 9747, 10051, 10557, 11799, 14283, 18411, 22287, 24909, 26979, 30153, 55233, 66861, 74727, 80937, 90459, 141151, 165699, 170867, 190969, 200583, 224181, 242811, 271377, 423453, 512601, 572907, 1270359, 1537803, 1718721, 3246473, 3811077, 4613409, 5156163, 9739419, 29218257, 87654771]

約数ペア:

[(1, 87654771), (3, 29218257), (9, 9739419), (17, 5156163), (19, 4613409), (23, 3811077), (27, 3246473), (51, 1718721), (57, 1537803), (69, 1270359), (153, 572907), (171, 512601), (207, 423453), (323, 271377), (361, 242811), (391, 224181), (437, 200583), (459, 190969), (513, 170867), (529, 165699), (621, 141151), (969, 90459), (1083, 80937), (1173, 74727), (1311, 66861), (1587, 55233), (2907, 30153), (3249, 26979), (3519, 24909), (3933, 22287), (4761, 18411), (6137, 14283), (7429, 11799), (8303, 10557), (8721, 10051), (8993, 9747)]