20280052

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{390001}}^1$

素因数の和:390018

約数の個数: 12

約数和(自身を含む): 38220196

約数和(自身を除く): 17940144

約数列:

[1, 2, 4, 13, 26, 52, 390001, 780002, 1560004, 5070013, 10140026, 20280052]

約数ペア:

[(1, 20280052), (2, 10140026), (4, 5070013), (13, 1560004), (26, 780002), (52, 390001)]