20280188188

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{390003619}}^1$

素因数の和:390003636

約数の個数: 12

約数和(自身を含む): 38220354760

約数和(自身を除く): 17940166572

約数列:

[1, 2, 4, 13, 26, 52, 390003619, 780007238, 1560014476, 5070047047, 10140094094, 20280188188]

約数ペア:

[(1, 20280188188), (2, 10140094094), (4, 5070047047), (13, 1560014476), (26, 780007238), (52, 390003619)]