20640712

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{62929}}^1$

素因数の和:62976

約数の個数: 16

約数和(自身を含む): 39645900

約数和(自身を除く): 19005188

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 62929, 125858, 251716, 503432, 2580089, 5160178, 10320356, 20640712]

約数ペア:

[(1, 20640712), (2, 10320356), (4, 5160178), (8, 2580089), (41, 503432), (82, 251716), (164, 125858), (328, 62929)]