128489977

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{257}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 165648384

約数和(自身を除く): 37158407

約数列:

[1, 7, 11, 43, 77, 151, 257, 301, 473, 1057, 1661, 1799, 2827, 3311, 6493, 11051, 11627, 19789, 38807, 45451, 71423, 77357, 121561, 271649, 426877, 499961, 850927, 1668701, 2988139, 11680907, 18355711, 128489977]

約数ペア:

[(1, 128489977), (7, 18355711), (11, 11680907), (43, 2988139), (77, 1668701), (151, 850927), (257, 499961), (301, 426877), (473, 271649), (1057, 121561), (1661, 77357), (1799, 71423), (2827, 45451), (3311, 38807), (6493, 19789), (11051, 11627)]