20465225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{74419}}^1$

素因数の和:74440

約数の個数: 12

約数和(自身を含む): 27684240

約数和(自身を除く): 7219015

約数列:

[1, 5, 11, 25, 55, 275, 74419, 372095, 818609, 1860475, 4093045, 20465225]

約数ペア:

[(1, 20465225), (5, 4093045), (11, 1860475), (25, 818609), (55, 372095), (275, 74419)]