19420760

素因数分解:

$2^3\times 5^1\times {\mathrm{485519}}^1$

素因数の和:485530

約数の個数: 16

約数和(自身を含む): 43696800

約数和(自身を除く): 24276040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 485519, 971038, 1942076, 2427595, 3884152, 4855190, 9710380, 19420760]

約数ペア:

[(1, 19420760), (2, 9710380), (4, 4855190), (5, 3884152), (8, 2427595), (10, 1942076), (20, 971038), (40, 485519)]