81688670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{7433}}^1$

素因数の和:7604

約数の個数: 32

約数和(自身を含む): 169138368

約数和(自身を除く): 87449698

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 157, 314, 785, 1099, 1570, 2198, 5495, 7433, 10990, 14866, 37165, 52031, 74330, 104062, 260155, 520310, 1166981, 2333962, 5834905, 8168867, 11669810, 16337734, 40844335, 81688670]

約数ペア:

[(1, 81688670), (2, 40844335), (5, 16337734), (7, 11669810), (10, 8168867), (14, 5834905), (35, 2333962), (70, 1166981), (157, 520310), (314, 260155), (785, 104062), (1099, 74330), (1570, 52031), (2198, 37165), (5495, 14866), (7433, 10990)]