19912975

素因数分解:

$5^2\times {\mathrm{419}}^1\times {\mathrm{1901}}^1$

素因数の和:2330

約数の個数: 12

約数和(自身を含む): 24764040

約数和(自身を除く): 4851065

約数列:

[1, 5, 25, 419, 1901, 2095, 9505, 10475, 47525, 796519, 3982595, 19912975]

約数ペア:

[(1, 19912975), (5, 3982595), (25, 796519), (419, 47525), (1901, 10475), (2095, 9505)]