128648728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{7589}}^1$

素因数の和:7771

約数の個数: 32

約数和(自身を含む): 261399600

約数和(自身を除く): 132750872

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 163, 326, 652, 1304, 2119, 4238, 7589, 8476, 15178, 16952, 30356, 60712, 98657, 197314, 394628, 789256, 1237007, 2474014, 4948028, 9896056, 16081091, 32162182, 64324364, 128648728]

約数ペア:

[(1, 128648728), (2, 64324364), (4, 32162182), (8, 16081091), (13, 9896056), (26, 4948028), (52, 2474014), (104, 1237007), (163, 789256), (326, 394628), (652, 197314), (1304, 98657), (2119, 60712), (4238, 30356), (7589, 16952), (8476, 15178)]