87878439

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1$

素因数の和:250

約数の個数: 80

約数和(自身を含む): 156816000

約数和(自身を除く): 68937561

約数列:

[1, 3, 9, 11, 19, 27, 29, 33, 57, 81, 87, 99, 171, 179, 209, 261, 297, 319, 513, 537, 551, 627, 783, 891, 957, 1539, 1611, 1653, 1881, 1969, 2349, 2871, 3401, 4833, 4959, 5191, 5643, 5907, 6061, 8613, 10203, 14499, 14877, 15573, 16929, 17721, 18183, 25839, 30609, 37411, 44631, 46719, 53163, 54549, 57101, 91827, 98629, 112233, 140157, 159489, 163647, 171303, 275481, 295887, 336699, 420471, 490941, 513909, 887661, 1010097, 1084919, 1541727, 2662983, 3030291, 3254757, 4625181, 7988949, 9764271, 29292813, 87878439]

約数ペア:

[(1, 87878439), (3, 29292813), (9, 9764271), (11, 7988949), (19, 4625181), (27, 3254757), (29, 3030291), (33, 2662983), (57, 1541727), (81, 1084919), (87, 1010097), (99, 887661), (171, 513909), (179, 490941), (209, 420471), (261, 336699), (297, 295887), (319, 275481), (513, 171303), (537, 163647), (551, 159489), (627, 140157), (783, 112233), (891, 98629), (957, 91827), (1539, 57101), (1611, 54549), (1653, 53163), (1881, 46719), (1969, 44631), (2349, 37411), (2871, 30609), (3401, 25839), (4833, 18183), (4959, 17721), (5191, 16929), (5643, 15573), (5907, 14877), (6061, 14499), (8613, 10203)]