20128997025

素因数分解:

$3^2\times 5^2\times {\mathrm{89462209}}^1$

素因数の和:89462225

約数の個数: 18

約数和(自身を含む): 36053270630

約数和(自身を除く): 15924273605

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 89462209, 268386627, 447311045, 805159881, 1341933135, 2236555225, 4025799405, 6709665675, 20128997025]

約数ペア:

[(1, 20128997025), (3, 6709665675), (5, 4025799405), (9, 2236555225), (15, 1341933135), (25, 805159881), (45, 447311045), (75, 268386627), (225, 89462209)]