19618120

素因数分解:

$2^3\times 5^1\times {\mathrm{490453}}^1$

素因数の和:490464

約数の個数: 16

約数和(自身を含む): 44140860

約数和(自身を除く): 24522740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 490453, 980906, 1961812, 2452265, 3923624, 4904530, 9809060, 19618120]

約数ペア:

[(1, 19618120), (2, 9809060), (4, 4904530), (5, 3923624), (8, 2452265), (10, 1961812), (20, 980906), (40, 490453)]