78445025

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{39719}}^1$

素因数の和:39808

約数の個数: 12

約数和(自身を含む): 98505600

約数和(自身を除く): 20060575

約数列:

[1, 5, 25, 79, 395, 1975, 39719, 198595, 992975, 3137801, 15689005, 78445025]

約数ペア:

[(1, 78445025), (5, 15689005), (25, 3137801), (79, 992975), (395, 198595), (1975, 39719)]