68714860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79901}}^1$

素因数の和:79953

約数の個数: 24

約数和(自身を含む): 147658896

約数和(自身を除く): 78944036

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 79901, 159802, 319604, 399505, 799010, 1598020, 3435743, 6871486, 13742972, 17178715, 34357430, 68714860]

約数ペア:

[(1, 68714860), (2, 34357430), (4, 17178715), (5, 13742972), (10, 6871486), (20, 3435743), (43, 1598020), (86, 799010), (172, 399505), (215, 319604), (430, 159802), (860, 79901)]