30981776

素因数分解:

$2^4\times 7^1\times {\mathrm{276623}}^1$

素因数の和:276638

約数の個数: 20

約数和(自身を含む): 68602752

約数和(自身を除く): 37620976

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 276623, 553246, 1106492, 1936361, 2212984, 3872722, 4425968, 7745444, 15490888, 30981776]

約数ペア:

[(1, 30981776), (2, 15490888), (4, 7745444), (7, 4425968), (8, 3872722), (14, 2212984), (16, 1936361), (28, 1106492), (56, 553246), (112, 276623)]