1990358768

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{631459}}^1$

素因数の和:631664

約数の個数: 20

約数和(自身を含む): 3875901480

約数和(自身を除く): 1885542712

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 631459, 1262918, 2525836, 5051672, 10103344, 124397423, 248794846, 497589692, 995179384, 1990358768]

約数ペア:

[(1, 1990358768), (2, 995179384), (4, 497589692), (8, 248794846), (16, 124397423), (197, 10103344), (394, 5051672), (788, 2525836), (1576, 1262918), (3152, 631459)]