2003980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9109}}^1$

素因数の和:9129

約数の個数: 24

約数和(自身を含む): 4591440

約数和(自身を除く): 2587460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 9109, 18218, 36436, 45545, 91090, 100199, 182180, 200398, 400796, 500995, 1001990, 2003980]

約数ペア:

[(1, 2003980), (2, 1001990), (4, 500995), (5, 400796), (10, 200398), (11, 182180), (20, 100199), (22, 91090), (44, 45545), (55, 36436), (110, 18218), (220, 9109)]