20898380

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{6257}}^1$

素因数の和:6433

約数の個数: 24

約数和(自身を含む): 44156448

約数和(自身を除く): 23258068

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 6257, 12514, 25028, 31285, 62570, 125140, 1044919, 2089838, 4179676, 5224595, 10449190, 20898380]

約数ペア:

[(1, 20898380), (2, 10449190), (4, 5224595), (5, 4179676), (10, 2089838), (20, 1044919), (167, 125140), (334, 62570), (668, 31285), (835, 25028), (1670, 12514), (3340, 6257)]