2001025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:201

約数の個数: 24

約数和(自身を含む): 2749824

約数和(自身を除く): 748799

約数列:

[1, 5, 13, 25, 47, 65, 131, 235, 325, 611, 655, 1175, 1703, 3055, 3275, 6157, 8515, 15275, 30785, 42575, 80041, 153925, 400205, 2001025]

約数ペア:

[(1, 2001025), (5, 400205), (13, 153925), (25, 80041), (47, 42575), (65, 30785), (131, 15275), (235, 8515), (325, 6157), (611, 3275), (655, 3055), (1175, 1703)]