81567795

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 141834240

約数和(自身を除く): 60266445

約数列:

[1, 3, 5, 15, 37, 47, 53, 59, 111, 141, 159, 177, 185, 235, 265, 295, 555, 705, 795, 885, 1739, 1961, 2183, 2491, 2773, 3127, 5217, 5883, 6549, 7473, 8319, 8695, 9381, 9805, 10915, 12455, 13865, 15635, 26085, 29415, 32745, 37365, 41595, 46905, 92167, 102601, 115699, 146969, 276501, 307803, 347097, 440907, 460835, 513005, 578495, 734845, 1382505, 1539015, 1735485, 2204535, 5437853, 16313559, 27189265, 81567795]

約数ペア:

[(1, 81567795), (3, 27189265), (5, 16313559), (15, 5437853), (37, 2204535), (47, 1735485), (53, 1539015), (59, 1382505), (111, 734845), (141, 578495), (159, 513005), (177, 460835), (185, 440907), (235, 347097), (265, 307803), (295, 276501), (555, 146969), (705, 115699), (795, 102601), (885, 92167), (1739, 46905), (1961, 41595), (2183, 37365), (2491, 32745), (2773, 29415), (3127, 26085), (5217, 15635), (5883, 13865), (6549, 12455), (7473, 10915), (8319, 9805), (8695, 9381)]