128891555

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{15137}}^1$

素因数の和:15286

約数の個数: 16

約数和(自身を含む): 167850144

約数和(自身を除く): 38958589

約数列:

[1, 5, 13, 65, 131, 655, 1703, 8515, 15137, 75685, 196781, 983905, 1982947, 9914735, 25778311, 128891555]

約数ペア:

[(1, 128891555), (5, 25778311), (13, 9914735), (65, 1982947), (131, 983905), (655, 196781), (1703, 75685), (8515, 15137)]