208028025

素因数分解:

$3^2\times 5^2\times {\mathrm{541}}^1\times {\mathrm{1709}}^1$

素因数の和:2266

約数の個数: 36

約数和(自身を含む): 373508460

約数和(自身を除く): 165480435

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 541, 1623, 1709, 2705, 4869, 5127, 8115, 8545, 13525, 15381, 24345, 25635, 40575, 42725, 76905, 121725, 128175, 384525, 924569, 2773707, 4622845, 8321121, 13868535, 23114225, 41605605, 69342675, 208028025]

約数ペア:

[(1, 208028025), (3, 69342675), (5, 41605605), (9, 23114225), (15, 13868535), (25, 8321121), (45, 4622845), (75, 2773707), (225, 924569), (541, 384525), (1623, 128175), (1709, 121725), (2705, 76905), (4869, 42725), (5127, 40575), (8115, 25635), (8545, 24345), (13525, 15381)]