209972025

素因数分解:

$3^2\times 5^2\times {\mathrm{933209}}^1$

素因数の和:933225

約数の個数: 18

約数和(自身を含む): 376083630

約数和(自身を除く): 166111605

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 933209, 2799627, 4666045, 8398881, 13998135, 23330225, 41994405, 69990675, 209972025]

約数ペア:

[(1, 209972025), (3, 69990675), (5, 41994405), (9, 23330225), (15, 13998135), (25, 8398881), (45, 4666045), (75, 2799627), (225, 933209)]