18910010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{270143}}^1$

素因数の和:270157

約数の個数: 16

約数和(自身を含む): 38900736

約数和(自身を除く): 19990726

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 270143, 540286, 1350715, 1891001, 2701430, 3782002, 9455005, 18910010]

約数ペア:

[(1, 18910010), (2, 9455005), (5, 3782002), (7, 2701430), (10, 1891001), (14, 1350715), (35, 540286), (70, 270143)]