28780492

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{553471}}^1$

素因数の和:553488

約数の個数: 12

約数和(自身を含む): 54240256

約数和(自身を除く): 25459764

約数列:

[1, 2, 4, 13, 26, 52, 553471, 1106942, 2213884, 7195123, 14390246, 28780492]

約数ペア:

[(1, 28780492), (2, 14390246), (4, 7195123), (13, 2213884), (26, 1106942), (52, 553471)]