80208639

素因数分解:

$3^2\times 7^2\times {\mathrm{239}}^1\times {\mathrm{761}}^1$

素因数の和:1020

約数の個数: 36

約数和(自身を含む): 135514080

約数和(自身を除く): 55305441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 239, 441, 717, 761, 1673, 2151, 2283, 5019, 5327, 6849, 11711, 15057, 15981, 35133, 37289, 47943, 105399, 111867, 181879, 335601, 545637, 1273153, 1636911, 3819459, 8912071, 11458377, 26736213, 80208639]

約数ペア:

[(1, 80208639), (3, 26736213), (7, 11458377), (9, 8912071), (21, 3819459), (49, 1636911), (63, 1273153), (147, 545637), (239, 335601), (441, 181879), (717, 111867), (761, 105399), (1673, 47943), (2151, 37289), (2283, 35133), (5019, 15981), (5327, 15057), (6849, 11711)]