16904260

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{2129}}^1$

素因数の和:2535

約数の個数: 24

約数和(自身を含む): 35605080

約数和(自身を除く): 18700820

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 2129, 3970, 4258, 7940, 8516, 10645, 21290, 42580, 845213, 1690426, 3380852, 4226065, 8452130, 16904260]

約数ペア:

[(1, 16904260), (2, 8452130), (4, 4226065), (5, 3380852), (10, 1690426), (20, 845213), (397, 42580), (794, 21290), (1588, 10645), (1985, 8516), (2129, 7940), (3970, 4258)]