20403340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53693}}^1$

素因数の和:53721

約数の個数: 24

約数和(自身を含む): 45102960

約数和(自身を除く): 24699620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 53693, 107386, 214772, 268465, 536930, 1020167, 1073860, 2040334, 4080668, 5100835, 10201670, 20403340]

約数ペア:

[(1, 20403340), (2, 10201670), (4, 5100835), (5, 4080668), (10, 2040334), (19, 1073860), (20, 1020167), (38, 536930), (76, 268465), (95, 214772), (190, 107386), (380, 53693)]