209974540

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{49757}}^1$

素因数の和:49977

約数の個数: 24

約数和(自身を含む): 443045232

約数和(自身を除く): 233070692

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 49757, 99514, 199028, 248785, 497570, 995140, 10498727, 20997454, 41994908, 52493635, 104987270, 209974540]

約数ペア:

[(1, 209974540), (2, 104987270), (4, 52493635), (5, 41994908), (10, 20997454), (20, 10498727), (211, 995140), (422, 497570), (844, 248785), (1055, 199028), (2110, 99514), (4220, 49757)]