78804475

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{39901}}^1$

素因数の和:39990

約数の個数: 12

約数和(自身を含む): 98956960

約数和(自身を除く): 20152485

約数列:

[1, 5, 25, 79, 395, 1975, 39901, 199505, 997525, 3152179, 15760895, 78804475]

約数ペア:

[(1, 78804475), (5, 15760895), (25, 3152179), (79, 997525), (395, 199505), (1975, 39901)]