16028980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{72859}}^1$

素因数の和:72879

約数の個数: 24

約数和(自身を含む): 36721440

約数和(自身を除く): 20692460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 72859, 145718, 291436, 364295, 728590, 801449, 1457180, 1602898, 3205796, 4007245, 8014490, 16028980]

約数ペア:

[(1, 16028980), (2, 8014490), (4, 4007245), (5, 3205796), (10, 1602898), (11, 1457180), (20, 801449), (22, 728590), (44, 364295), (55, 291436), (110, 145718), (220, 72859)]