1288391

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:206

約数の個数: 16

約数和(自身を含む): 1505280

約数和(自身を除く): 216889

約数列:

[1, 13, 23, 31, 139, 299, 403, 713, 1807, 3197, 4309, 9269, 41561, 56017, 99107, 1288391]

約数ペア:

[(1, 1288391), (13, 99107), (23, 56017), (31, 41561), (139, 9269), (299, 4309), (403, 3197), (713, 1807)]