20551540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{54083}}^1$

素因数の和:54111

約数の個数: 24

約数和(自身を含む): 45430560

約数和(自身を除く): 24879020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 54083, 108166, 216332, 270415, 540830, 1027577, 1081660, 2055154, 4110308, 5137885, 10275770, 20551540]

約数ペア:

[(1, 20551540), (2, 10275770), (4, 5137885), (5, 4110308), (10, 2055154), (19, 1081660), (20, 1027577), (38, 540830), (76, 270415), (95, 216332), (190, 108166), (380, 54083)]