1291354370

素因数分解:

$2^1\times 5^1\times {\mathrm{557}}^1\times {\mathrm{231841}}^1$

素因数の和:232405

約数の個数: 16

約数和(自身を含む): 2328621048

約数和(自身を除く): 1037266678

約数列:

[1, 2, 5, 10, 557, 1114, 2785, 5570, 231841, 463682, 1159205, 2318410, 129135437, 258270874, 645677185, 1291354370]

約数ペア:

[(1, 1291354370), (2, 645677185), (5, 258270874), (10, 129135437), (557, 2318410), (1114, 1159205), (2785, 463682), (5570, 231841)]