19484440

素因数分解:

$2^3\times 5^1\times {\mathrm{487111}}^1$

素因数の和:487122

約数の個数: 16

約数和(自身を含む): 43840080

約数和(自身を除く): 24355640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487111, 974222, 1948444, 2435555, 3896888, 4871110, 9742220, 19484440]

約数ペア:

[(1, 19484440), (2, 9742220), (4, 4871110), (5, 3896888), (8, 2435555), (10, 1948444), (20, 974222), (40, 487111)]