2000989894

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{1283}}^1\times {\mathrm{9871}}^1$

素因数の和:11235

約数の個数: 16

約数和(自身を含む): 3042155520

約数和(自身を除く): 1041165626

約数列:

[1, 2, 79, 158, 1283, 2566, 9871, 19742, 101357, 202714, 779809, 1559618, 12664493, 25328986, 1000494947, 2000989894]

約数ペア:

[(1, 2000989894), (2, 1000494947), (79, 25328986), (158, 12664493), (1283, 1559618), (2566, 779809), (9871, 202714), (19742, 101357)]