28752880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27647}}^1$

素因数の和:27673

約数の個数: 40

約数和(自身を含む): 71995392

約数和(自身を除く): 43242512

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 27647, 55294, 110588, 138235, 221176, 276470, 359411, 442352, 552940, 718822, 1105880, 1437644, 1797055, 2211760, 2875288, 3594110, 5750576, 7188220, 14376440, 28752880]

約数ペア:

[(1, 28752880), (2, 14376440), (4, 7188220), (5, 5750576), (8, 3594110), (10, 2875288), (13, 2211760), (16, 1797055), (20, 1437644), (26, 1105880), (40, 718822), (52, 552940), (65, 442352), (80, 359411), (104, 276470), (130, 221176), (208, 138235), (260, 110588), (520, 55294), (1040, 27647)]