81289784

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{20611}}^1$

素因数の和:20663

約数の個数: 32

約数和(自身を含む): 166957200

約数和(自身を除く): 85667416

約数列:

[1, 2, 4, 8, 17, 29, 34, 58, 68, 116, 136, 232, 493, 986, 1972, 3944, 20611, 41222, 82444, 164888, 350387, 597719, 700774, 1195438, 1401548, 2390876, 2803096, 4781752, 10161223, 20322446, 40644892, 81289784]

約数ペア:

[(1, 81289784), (2, 40644892), (4, 20322446), (8, 10161223), (17, 4781752), (29, 2803096), (34, 2390876), (58, 1401548), (68, 1195438), (116, 700774), (136, 597719), (232, 350387), (493, 164888), (986, 82444), (1972, 41222), (3944, 20611)]