20090165870

素因数分解:

$2^1\times 5^1\times {\mathrm{1789}}^1\times {\mathrm{1122983}}^1$

素因数の和:1124779

約数の個数: 16

約数和(自身を含む): 36182544480

約数和(自身を除く): 16092378610

約数列:

[1, 2, 5, 10, 1789, 3578, 8945, 17890, 1122983, 2245966, 5614915, 11229830, 2009016587, 4018033174, 10045082935, 20090165870]

約数ペア:

[(1, 20090165870), (2, 10045082935), (5, 4018033174), (10, 2009016587), (1789, 11229830), (3578, 5614915), (8945, 2245966), (17890, 1122983)]