19941575

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{439}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 26188800

約数和(自身を除く): 6247225

約数列:

[1, 5, 23, 25, 79, 115, 395, 439, 575, 1817, 1975, 2195, 9085, 10097, 10975, 34681, 45425, 50485, 173405, 252425, 797663, 867025, 3988315, 19941575]

約数ペア:

[(1, 19941575), (5, 3988315), (23, 867025), (25, 797663), (79, 252425), (115, 173405), (395, 50485), (439, 45425), (575, 34681), (1817, 10975), (1975, 10097), (2195, 9085)]