28910025

素因数分解:

$3^2\times 5^2\times {\mathrm{128489}}^1$

素因数の和:128505

約数の個数: 18

約数和(自身を含む): 51781470

約数和(自身を除く): 22871445

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 128489, 385467, 642445, 1156401, 1927335, 3212225, 5782005, 9636675, 28910025]

約数ペア:

[(1, 28910025), (3, 9636675), (5, 5782005), (9, 3212225), (15, 1927335), (25, 1156401), (45, 642445), (75, 385467), (225, 128489)]