80773456

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{36319}}^1$

素因数の和:36466

約数の個数: 20

約数和(自身を含む): 157628800

約数和(自身を除く): 76855344

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 36319, 72638, 145276, 290552, 581104, 5048341, 10096682, 20193364, 40386728, 80773456]

約数ペア:

[(1, 80773456), (2, 40386728), (4, 20193364), (8, 10096682), (16, 5048341), (139, 581104), (278, 290552), (556, 145276), (1112, 72638), (2224, 36319)]