28705585

素因数分解:

$5^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1\times {\mathrm{401}}^1$

素因数の和:648

約数の個数: 16

約数和(自身を含む): 35118720

約数和(自身を除く): 6413135

約数列:

[1, 5, 103, 139, 401, 515, 695, 2005, 14317, 41303, 55739, 71585, 206515, 278695, 5741117, 28705585]

約数ペア:

[(1, 28705585), (5, 5741117), (103, 278695), (139, 206515), (401, 71585), (515, 55739), (695, 41303), (2005, 14317)]