128581622

素因数分解:

$2^1\times {\mathrm{13}}^4\times {\mathrm{2251}}^1$

素因数の和:2305

約数の個数: 20

約数和(自身を含む): 209037396

約数和(自身を除く): 80455774

約数列:

[1, 2, 13, 26, 169, 338, 2197, 2251, 4394, 4502, 28561, 29263, 57122, 58526, 380419, 760838, 4945447, 9890894, 64290811, 128581622]

約数ペア:

[(1, 128581622), (2, 64290811), (13, 9890894), (26, 4945447), (169, 760838), (338, 380419), (2197, 58526), (2251, 57122), (4394, 29263), (4502, 28561)]