2640538

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{419}}^1$

素因数の和:581

約数の個数: 16

約数和(自身を含む): 4173120

約数和(自身を除く): 1532582

約数列:

[1, 2, 23, 46, 137, 274, 419, 838, 3151, 6302, 9637, 19274, 57403, 114806, 1320269, 2640538]

約数ペア:

[(1, 2640538), (2, 1320269), (23, 114806), (46, 57403), (137, 19274), (274, 9637), (419, 6302), (838, 3151)]