2640056

素因数分解:

$2^3\times {\mathrm{331}}^1\times {\mathrm{997}}^1$

素因数の和:1334

約数の個数: 16

約数和(自身を含む): 4970040

約数和(自身を除く): 2329984

約数列:

[1, 2, 4, 8, 331, 662, 997, 1324, 1994, 2648, 3988, 7976, 330007, 660014, 1320028, 2640056]

約数ペア:

[(1, 2640056), (2, 1320028), (4, 660014), (8, 330007), (331, 7976), (662, 3988), (997, 2648), (1324, 1994)]