31256485

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 42311808

約数和(自身を除く): 11055323

約数列:

[1, 5, 13, 43, 53, 65, 211, 215, 265, 559, 689, 1055, 2279, 2743, 2795, 3445, 9073, 11183, 11395, 13715, 29627, 45365, 55915, 117949, 145379, 148135, 480869, 589745, 726895, 2404345, 6251297, 31256485]

約数ペア:

[(1, 31256485), (5, 6251297), (13, 2404345), (43, 726895), (53, 589745), (65, 480869), (211, 148135), (215, 145379), (265, 117949), (559, 55915), (689, 45365), (1055, 29627), (2279, 13715), (2743, 11395), (2795, 11183), (3445, 9073)]