28040025

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{28759}}^1$

素因数の和:28785

約数の個数: 24

約数和(自身を含む): 49927360

約数和(自身を除く): 21887335

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 28759, 86277, 143795, 373867, 431385, 718975, 1121601, 1869335, 2156925, 5608005, 9346675, 28040025]

約数ペア:

[(1, 28040025), (3, 9346675), (5, 5608005), (13, 2156925), (15, 1869335), (25, 1121601), (39, 718975), (65, 431385), (75, 373867), (195, 143795), (325, 86277), (975, 28759)]