81131896

素因数分解:

$2^3\times {\mathrm{239}}^1\times {\mathrm{42433}}^1$

素因数の和:42678

約数の個数: 16

約数和(自身を含む): 152762400

約数和(自身を除く): 71630504

約数列:

[1, 2, 4, 8, 239, 478, 956, 1912, 42433, 84866, 169732, 339464, 10141487, 20282974, 40565948, 81131896]

約数ペア:

[(1, 81131896), (2, 40565948), (4, 20282974), (8, 10141487), (239, 339464), (478, 169732), (956, 84866), (1912, 42433)]