204557420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{538309}}^1$

素因数の和:538337

約数の個数: 24

約数和(自身を含む): 452180400

約数和(自身を除く): 247622980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 538309, 1076618, 2153236, 2691545, 5383090, 10227871, 10766180, 20455742, 40911484, 51139355, 102278710, 204557420]

約数ペア:

[(1, 204557420), (2, 102278710), (4, 51139355), (5, 40911484), (10, 20455742), (19, 10766180), (20, 10227871), (38, 5383090), (76, 2691545), (95, 2153236), (190, 1076618), (380, 538309)]