28148195

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1\times {\mathrm{401}}^1$

素因数の和:646

約数の個数: 16

約数和(自身を含む): 34443360

約数和(自身を除く): 6295165

約数列:

[1, 5, 101, 139, 401, 505, 695, 2005, 14039, 40501, 55739, 70195, 202505, 278695, 5629639, 28148195]

約数ペア:

[(1, 28148195), (5, 5629639), (101, 278695), (139, 202505), (401, 70195), (505, 55739), (695, 40501), (2005, 14039)]