8419240

素因数分解:

$2^3\times 5^1\times {\mathrm{210481}}^1$

素因数の和:210492

約数の個数: 16

約数和(自身を含む): 18943380

約数和(自身を除く): 10524140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 210481, 420962, 841924, 1052405, 1683848, 2104810, 4209620, 8419240]

約数ペア:

[(1, 8419240), (2, 4209620), (4, 2104810), (5, 1683848), (8, 1052405), (10, 841924), (20, 420962), (40, 210481)]