20874710

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29401}}^1$

素因数の和:29479

約数の個数: 16

約数和(自身を含む): 38104992

約数和(自身を除く): 17230282

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 29401, 58802, 147005, 294010, 2087471, 4174942, 10437355, 20874710]

約数ペア:

[(1, 20874710), (2, 10437355), (5, 4174942), (10, 2087471), (71, 294010), (142, 147005), (355, 58802), (710, 29401)]