28380572

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{645013}}^1$

素因数の和:645028

約数の個数: 12

約数和(自身を含む): 54181176

約数和(自身を除く): 25800604

約数列:

[1, 2, 4, 11, 22, 44, 645013, 1290026, 2580052, 7095143, 14190286, 28380572]

約数ペア:

[(1, 28380572), (2, 14190286), (4, 7095143), (11, 2580052), (22, 1290026), (44, 645013)]