81519680

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23159}}^1$

素因数の和:23187

約数の個数: 56

約数和(自身を含む): 211775040

約数和(自身を除く): 130255360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 23159, 46318, 92636, 115795, 185272, 231590, 254749, 370544, 463180, 509498, 741088, 926360, 1018996, 1273745, 1482176, 1852720, 2037992, 2547490, 3705440, 4075984, 5094980, 7410880, 8151968, 10189960, 16303936, 20379920, 40759840, 81519680]

約数ペア:

[(1, 81519680), (2, 40759840), (4, 20379920), (5, 16303936), (8, 10189960), (10, 8151968), (11, 7410880), (16, 5094980), (20, 4075984), (22, 3705440), (32, 2547490), (40, 2037992), (44, 1852720), (55, 1482176), (64, 1273745), (80, 1018996), (88, 926360), (110, 741088), (160, 509498), (176, 463180), (220, 370544), (320, 254749), (352, 231590), (440, 185272), (704, 115795), (880, 92636), (1760, 46318), (3520, 23159)]