129712144

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{51637}}^1$

素因数の和:51802

約数の個数: 20

約数和(自身を含む): 252922924

約数和(自身を除く): 123210780

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 51637, 103274, 206548, 413096, 826192, 8107009, 16214018, 32428036, 64856072, 129712144]

約数ペア:

[(1, 129712144), (2, 64856072), (4, 32428036), (8, 16214018), (16, 8107009), (157, 826192), (314, 413096), (628, 206548), (1256, 103274), (2512, 51637)]