2005480

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{277}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 4553640

約数和(自身を除く): 2548160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 277, 362, 554, 724, 905, 1108, 1385, 1448, 1810, 2216, 2770, 3620, 5540, 7240, 11080, 50137, 100274, 200548, 250685, 401096, 501370, 1002740, 2005480]

約数ペア:

[(1, 2005480), (2, 1002740), (4, 501370), (5, 401096), (8, 250685), (10, 200548), (20, 100274), (40, 50137), (181, 11080), (277, 7240), (362, 5540), (554, 3620), (724, 2770), (905, 2216), (1108, 1810), (1385, 1448)]