19859240

素因数分解:

$2^3\times 5^1\times {\mathrm{496481}}^1$

素因数の和:496492

約数の個数: 16

約数和(自身を含む): 44683380

約数和(自身を除く): 24824140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 496481, 992962, 1985924, 2482405, 3971848, 4964810, 9929620, 19859240]

約数ペア:

[(1, 19859240), (2, 9929620), (4, 4964810), (5, 3971848), (8, 2482405), (10, 1985924), (20, 992962), (40, 496481)]