19858840

素因数分解:

$2^3\times 5^1\times {\mathrm{496471}}^1$

素因数の和:496482

約数の個数: 16

約数和(自身を含む): 44682480

約数和(自身を除く): 24823640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 496471, 992942, 1985884, 2482355, 3971768, 4964710, 9929420, 19858840]

約数ペア:

[(1, 19858840), (2, 9929420), (4, 4964710), (5, 3971768), (8, 2482355), (10, 1985884), (20, 992942), (40, 496471)]