81378577

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{719}}^1$

素因数の和:805

約数の個数: 32

約数和(自身を含む): 105062400

約数和(自身を除く): 23683823

約数列:

[1, 7, 19, 23, 37, 133, 161, 259, 437, 703, 719, 851, 3059, 4921, 5033, 5957, 13661, 16169, 16537, 26603, 95627, 113183, 115759, 186221, 314203, 505457, 611869, 2199421, 3538199, 4283083, 11625511, 81378577]

約数ペア:

[(1, 81378577), (7, 11625511), (19, 4283083), (23, 3538199), (37, 2199421), (133, 611869), (161, 505457), (259, 314203), (437, 186221), (703, 115759), (719, 113183), (851, 95627), (3059, 26603), (4921, 16537), (5033, 16169), (5957, 13661)]