80164436

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{1861}}^1$

素因数の和:1976

約数の個数: 36

約数和(自身を含む): 156016980

約数和(自身を除く): 75852544

約数列:

[1, 2, 4, 11, 22, 44, 89, 121, 178, 242, 356, 484, 979, 1861, 1958, 3722, 3916, 7444, 10769, 20471, 21538, 40942, 43076, 81884, 165629, 225181, 331258, 450362, 662516, 900724, 1821919, 3643838, 7287676, 20041109, 40082218, 80164436]

約数ペア:

[(1, 80164436), (2, 40082218), (4, 20041109), (11, 7287676), (22, 3643838), (44, 1821919), (89, 900724), (121, 662516), (178, 450362), (242, 331258), (356, 225181), (484, 165629), (979, 81884), (1861, 43076), (1958, 40942), (3722, 21538), (3916, 20471), (7444, 10769)]