27772780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{198377}}^1$

素因数の和:198393

約数の個数: 24

約数和(自身を含む): 66655008

約数和(自身を除く): 38882228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 198377, 396754, 793508, 991885, 1388639, 1983770, 2777278, 3967540, 5554556, 6943195, 13886390, 27772780]

約数ペア:

[(1, 27772780), (2, 13886390), (4, 6943195), (5, 5554556), (7, 3967540), (10, 2777278), (14, 1983770), (20, 1388639), (28, 991885), (35, 793508), (70, 396754), (140, 198377)]