139905212

素因数分解:

$2^2\times {\mathrm{157}}^1\times {\mathrm{222779}}^1$

素因数の和:222940

約数の個数: 12

約数和(自身を含む): 246394680

約数和(自身を除く): 106489468

約数列:

[1, 2, 4, 157, 314, 628, 222779, 445558, 891116, 34976303, 69952606, 139905212]

約数ペア:

[(1, 139905212), (2, 69952606), (4, 34976303), (157, 891116), (314, 445558), (628, 222779)]