289300781

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{7621}}^1$

素因数の和:7685

約数の個数: 32

約数和(自身を含む): 395124480

約数和(自身を除く): 105823699

約数列:

[1, 7, 11, 17, 29, 77, 119, 187, 203, 319, 493, 1309, 2233, 3451, 5423, 7621, 37961, 53347, 83831, 129557, 221009, 586817, 906899, 1425127, 1547063, 2431099, 3757153, 9975889, 17017693, 26300071, 41328683, 289300781]

約数ペア:

[(1, 289300781), (7, 41328683), (11, 26300071), (17, 17017693), (29, 9975889), (77, 3757153), (119, 2431099), (187, 1547063), (203, 1425127), (319, 906899), (493, 586817), (1309, 221009), (2233, 129557), (3451, 83831), (5423, 53347), (7621, 37961)]