81626655

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:336

約数の個数: 64

約数和(自身を含む): 150709248

約数和(自身を除く): 69082593

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 137, 157, 165, 253, 345, 411, 471, 685, 759, 785, 1265, 1507, 1727, 2055, 2355, 3151, 3611, 3795, 4521, 5181, 7535, 8635, 9453, 10833, 15755, 18055, 21509, 22605, 25905, 34661, 39721, 47265, 54165, 64527, 103983, 107545, 119163, 173305, 198605, 236599, 322635, 494707, 519915, 595815, 709797, 1182995, 1484121, 2473535, 3548985, 5441777, 7420605, 16325331, 27208885, 81626655]

約数ペア:

[(1, 81626655), (3, 27208885), (5, 16325331), (11, 7420605), (15, 5441777), (23, 3548985), (33, 2473535), (55, 1484121), (69, 1182995), (115, 709797), (137, 595815), (157, 519915), (165, 494707), (253, 322635), (345, 236599), (411, 198605), (471, 173305), (685, 119163), (759, 107545), (785, 103983), (1265, 64527), (1507, 54165), (1727, 47265), (2055, 39721), (2355, 34661), (3151, 25905), (3611, 22605), (3795, 21509), (4521, 18055), (5181, 15755), (7535, 10833), (8635, 9453)]