2642590

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{659}}^1$

素因数の和:1067

約数の個数: 16

約数和(自身を含む): 4775760

約数和(自身を除く): 2133170

約数列:

[1, 2, 5, 10, 401, 659, 802, 1318, 2005, 3295, 4010, 6590, 264259, 528518, 1321295, 2642590]

約数ペア:

[(1, 2642590), (2, 1321295), (5, 528518), (10, 264259), (401, 6590), (659, 4010), (802, 3295), (1318, 2005)]