28712008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{5209}}^1$

素因数の和:5281

約数の個数: 32

約数和(自身を含む): 59081400

約数和(自身を除く): 30369392

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 1378, 2756, 5209, 5512, 10418, 20836, 41672, 67717, 135434, 270868, 276077, 541736, 552154, 1104308, 2208616, 3589001, 7178002, 14356004, 28712008]

約数ペア:

[(1, 28712008), (2, 14356004), (4, 7178002), (8, 3589001), (13, 2208616), (26, 1104308), (52, 552154), (53, 541736), (104, 276077), (106, 270868), (212, 135434), (424, 67717), (689, 41672), (1378, 20836), (2756, 10418), (5209, 5512)]