81579135

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:480

約数の個数: 64

約数和(自身を含む): 150958080

約数和(自身を除く): 69378945

約数列:

[1, 3, 5, 11, 15, 31, 33, 41, 55, 93, 123, 155, 165, 205, 341, 389, 451, 465, 615, 1023, 1167, 1271, 1353, 1705, 1945, 2255, 3813, 4279, 5115, 5835, 6355, 6765, 12059, 12837, 13981, 15949, 19065, 21395, 36177, 41943, 47847, 60295, 64185, 69905, 79745, 132649, 175439, 180885, 209715, 239235, 397947, 494419, 526317, 663245, 877195, 1483257, 1989735, 2472095, 2631585, 5438609, 7416285, 16315827, 27193045, 81579135]

約数ペア:

[(1, 81579135), (3, 27193045), (5, 16315827), (11, 7416285), (15, 5438609), (31, 2631585), (33, 2472095), (41, 1989735), (55, 1483257), (93, 877195), (123, 663245), (155, 526317), (165, 494419), (205, 397947), (341, 239235), (389, 209715), (451, 180885), (465, 175439), (615, 132649), (1023, 79745), (1167, 69905), (1271, 64185), (1353, 60295), (1705, 47847), (1945, 41943), (2255, 36177), (3813, 21395), (4279, 19065), (5115, 15949), (5835, 13981), (6355, 12837), (6765, 12059)]