81584490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3947}}^1$

素因数の和:4023

約数の個数: 64

約数和(自身を含む): 214897536

約数和(自身を除く): 133313046

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 53, 65, 78, 106, 130, 159, 195, 265, 318, 390, 530, 689, 795, 1378, 1590, 2067, 3445, 3947, 4134, 6890, 7894, 10335, 11841, 19735, 20670, 23682, 39470, 51311, 59205, 102622, 118410, 153933, 209191, 256555, 307866, 418382, 513110, 627573, 769665, 1045955, 1255146, 1539330, 2091910, 2719483, 3137865, 5438966, 6275730, 8158449, 13597415, 16316898, 27194830, 40792245, 81584490]

約数ペア:

[(1, 81584490), (2, 40792245), (3, 27194830), (5, 16316898), (6, 13597415), (10, 8158449), (13, 6275730), (15, 5438966), (26, 3137865), (30, 2719483), (39, 2091910), (53, 1539330), (65, 1255146), (78, 1045955), (106, 769665), (130, 627573), (159, 513110), (195, 418382), (265, 307866), (318, 256555), (390, 209191), (530, 153933), (689, 118410), (795, 102622), (1378, 59205), (1590, 51311), (2067, 39470), (3445, 23682), (3947, 20670), (4134, 19735), (6890, 11841), (7894, 10335)]