664223521

素因数分解:

${\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{419}}^1\times {\mathrm{619}}^1$

素因数の和:1248

約数の個数: 16

約数和(自身を含む): 721828800

約数和(自身を除く): 57605279

約数列:

[1, 13, 197, 419, 619, 2561, 5447, 8047, 82543, 121943, 259361, 1073059, 1585259, 3371693, 51094117, 664223521]

約数ペア:

[(1, 664223521), (13, 51094117), (197, 3371693), (419, 1585259), (619, 1073059), (2561, 259361), (5447, 121943), (8047, 82543)]