8239240

素因数分解:

$2^3\times 5^1\times {\mathrm{205981}}^1$

素因数の和:205992

約数の個数: 16

約数和(自身を含む): 18538380

約数和(自身を除く): 10299140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 205981, 411962, 823924, 1029905, 1647848, 2059810, 4119620, 8239240]

約数ペア:

[(1, 8239240), (2, 4119620), (4, 2059810), (5, 1647848), (8, 1029905), (10, 823924), (20, 411962), (40, 205981)]