177540025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{1621}}^1$

素因数の和:1981

約数の個数: 24

約数和(自身を含む): 237934424

約数和(自身を除く): 60394399

約数列:

[1, 5, 13, 25, 65, 325, 337, 1621, 1685, 4381, 8105, 8425, 21073, 21905, 40525, 105365, 109525, 526825, 546277, 2731385, 7101601, 13656925, 35508005, 177540025]

約数ペア:

[(1, 177540025), (5, 35508005), (13, 13656925), (25, 7101601), (65, 2731385), (325, 546277), (337, 526825), (1621, 109525), (1685, 105365), (4381, 40525), (8105, 21905), (8425, 21073)]