128781672

素因数分解:

$2^3\times 3^1\times {\mathrm{257}}^1\times {\mathrm{20879}}^1$

素因数の和:21145

約数の個数: 32

約数和(自身を含む): 323222400

約数和(自身を除く): 194440728

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 257, 514, 771, 1028, 1542, 2056, 3084, 6168, 20879, 41758, 62637, 83516, 125274, 167032, 250548, 501096, 5365903, 10731806, 16097709, 21463612, 32195418, 42927224, 64390836, 128781672]

約数ペア:

[(1, 128781672), (2, 64390836), (3, 42927224), (4, 32195418), (6, 21463612), (8, 16097709), (12, 10731806), (24, 5365903), (257, 501096), (514, 250548), (771, 167032), (1028, 125274), (1542, 83516), (2056, 62637), (3084, 41758), (6168, 20879)]