81292460

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^2\times {\mathrm{1447}}^1$

素因数の和:1562

約数の個数: 36

約数和(自身を含む): 174116208

約数和(自身を除く): 92823748

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 1447, 2809, 2894, 5618, 5788, 7235, 11236, 14045, 14470, 28090, 28940, 56180, 76691, 153382, 306764, 383455, 766910, 1533820, 4064623, 8129246, 16258492, 20323115, 40646230, 81292460]

約数ペア:

[(1, 81292460), (2, 40646230), (4, 20323115), (5, 16258492), (10, 8129246), (20, 4064623), (53, 1533820), (106, 766910), (212, 383455), (265, 306764), (530, 153382), (1060, 76691), (1447, 56180), (2809, 28940), (2894, 28090), (5618, 14470), (5788, 14045), (7235, 11236)]