28711775

素因数分解:

$5^2\times {\mathrm{83}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:331

約数の個数: 24

約数和(自身を含む): 36653904

約数和(自身を除く): 7942129

約数列:

[1, 5, 25, 83, 101, 137, 415, 505, 685, 2075, 2525, 3425, 8383, 11371, 13837, 41915, 56855, 69185, 209575, 284275, 345925, 1148471, 5742355, 28711775]

約数ペア:

[(1, 28711775), (5, 5742355), (25, 1148471), (83, 345925), (101, 284275), (137, 209575), (415, 69185), (505, 56855), (685, 41915), (2075, 13837), (2525, 11371), (3425, 8383)]