257913488

素因数分解:

$2^4\times 7^1\times {\mathrm{2302799}}^1$

素因数の和:2302814

約数の個数: 20

約数和(自身を含む): 571094400

約数和(自身を除く): 313180912

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 2302799, 4605598, 9211196, 16119593, 18422392, 32239186, 36844784, 64478372, 128956744, 257913488]

約数ペア:

[(1, 257913488), (2, 128956744), (4, 64478372), (7, 36844784), (8, 32239186), (14, 18422392), (16, 16119593), (28, 9211196), (56, 4605598), (112, 2302799)]