20899525

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1913}}^1$

素因数の和:1965

約数の個数: 24

約数和(自身を含む): 28480320

約数和(自身を除く): 7580795

約数列:

[1, 5, 19, 23, 25, 95, 115, 437, 475, 575, 1913, 2185, 9565, 10925, 36347, 43999, 47825, 181735, 219995, 835981, 908675, 1099975, 4179905, 20899525]

約数ペア:

[(1, 20899525), (5, 4179905), (19, 1099975), (23, 908675), (25, 835981), (95, 219995), (115, 181735), (437, 47825), (475, 43999), (575, 36347), (1913, 10925), (2185, 9565)]