8138728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{563}}^1$

素因数の和:721

約数の個数: 32

約数和(自身を含む): 16581600

約数和(自身を除く): 8442872

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 139, 278, 556, 563, 1112, 1126, 1807, 2252, 3614, 4504, 7228, 7319, 14456, 14638, 29276, 58552, 78257, 156514, 313028, 626056, 1017341, 2034682, 4069364, 8138728]

約数ペア:

[(1, 8138728), (2, 4069364), (4, 2034682), (8, 1017341), (13, 626056), (26, 313028), (52, 156514), (104, 78257), (139, 58552), (278, 29276), (556, 14638), (563, 14456), (1112, 7319), (1126, 7228), (1807, 4504), (2252, 3614)]