19221320

素因数分解:

$2^3\times 5^1\times {\mathrm{480533}}^1$

素因数の和:480544

約数の個数: 16

約数和(自身を含む): 43248060

約数和(自身を除く): 24026740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 480533, 961066, 1922132, 2402665, 3844264, 4805330, 9610660, 19221320]

約数ペア:

[(1, 19221320), (2, 9610660), (4, 4805330), (5, 3844264), (8, 2402665), (10, 1922132), (20, 961066), (40, 480533)]