19619240

素因数分解:

$2^3\times 5^1\times {\mathrm{490481}}^1$

素因数の和:490492

約数の個数: 16

約数和(自身を含む): 44143380

約数和(自身を除く): 24524140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 490481, 980962, 1961924, 2452405, 3923848, 4904810, 9809620, 19619240]

約数ペア:

[(1, 19619240), (2, 9809620), (4, 4904810), (5, 3923848), (8, 2452405), (10, 1961924), (20, 980962), (40, 490481)]