2640976

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{12697}}^1$

素因数の和:12718

約数の個数: 20

約数和(自身を含む): 5510932

約数和(自身を除く): 2869956

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 12697, 25394, 50788, 101576, 165061, 203152, 330122, 660244, 1320488, 2640976]

約数ペア:

[(1, 2640976), (2, 1320488), (4, 660244), (8, 330122), (13, 203152), (16, 165061), (26, 101576), (52, 50788), (104, 25394), (208, 12697)]