19148440

素因数分解:

$2^3\times 5^1\times {\mathrm{478711}}^1$

素因数の和:478722

約数の個数: 16

約数和(自身を含む): 43084080

約数和(自身を除く): 23935640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 478711, 957422, 1914844, 2393555, 3829688, 4787110, 9574220, 19148440]

約数ペア:

[(1, 19148440), (2, 9574220), (4, 4787110), (5, 3829688), (8, 2393555), (10, 1914844), (20, 957422), (40, 478711)]