28786028

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{641}}^1$

素因数の和:857

約数の個数: 24

約数和(自身を含む): 51411360

約数和(自身を除く): 22625332

約数列:

[1, 2, 4, 103, 109, 206, 218, 412, 436, 641, 1282, 2564, 11227, 22454, 44908, 66023, 69869, 132046, 139738, 264092, 279476, 7196507, 14393014, 28786028]

約数ペア:

[(1, 28786028), (2, 14393014), (4, 7196507), (103, 279476), (109, 264092), (206, 139738), (218, 132046), (412, 69869), (436, 66023), (641, 44908), (1282, 22454), (2564, 11227)]