661881025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{43331}}^1$

素因数の和:43401

約数の個数: 24

約数和(自身を含む): 902692224

約数和(自身を除く): 240811199

約数列:

[1, 5, 13, 25, 47, 65, 235, 325, 611, 1175, 3055, 15275, 43331, 216655, 563303, 1083275, 2036557, 2816515, 10182785, 14082575, 26475241, 50913925, 132376205, 661881025]

約数ペア:

[(1, 661881025), (5, 132376205), (13, 50913925), (25, 26475241), (47, 14082575), (65, 10182785), (235, 2816515), (325, 2036557), (611, 1083275), (1175, 563303), (3055, 216655), (15275, 43331)]