19780031570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{152154089}}^1$

素因数の和:152154109

約数の個数: 16

約数和(自身を含む): 38342830680

約数和(自身を除く): 18562799110

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 152154089, 304308178, 760770445, 1521540890, 1978003157, 3956006314, 9890015785, 19780031570]

約数ペア:

[(1, 19780031570), (2, 9890015785), (5, 3956006314), (10, 1978003157), (13, 1521540890), (26, 760770445), (65, 304308178), (130, 152154089)]