2000609960

素因数分解:

$2^3\times 5^1\times {\mathrm{2309}}^1\times {\mathrm{21661}}^1$

素因数の和:23981

約数の個数: 32

約数和(自身を含む): 4503529800

約数和(自身を除く): 2502919840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2309, 4618, 9236, 11545, 18472, 21661, 23090, 43322, 46180, 86644, 92360, 108305, 173288, 216610, 433220, 866440, 50015249, 100030498, 200060996, 250076245, 400121992, 500152490, 1000304980, 2000609960]

約数ペア:

[(1, 2000609960), (2, 1000304980), (4, 500152490), (5, 400121992), (8, 250076245), (10, 200060996), (20, 100030498), (40, 50015249), (2309, 866440), (4618, 433220), (9236, 216610), (11545, 173288), (18472, 108305), (21661, 92360), (23090, 86644), (43322, 46180)]