2587240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{911}}^1$

素因数の和:993

約数の個数: 32

約数和(自身を含む): 5909760

約数和(自身を除く): 3322520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 911, 1420, 1822, 2840, 3644, 4555, 7288, 9110, 18220, 36440, 64681, 129362, 258724, 323405, 517448, 646810, 1293620, 2587240]

約数ペア:

[(1, 2587240), (2, 1293620), (4, 646810), (5, 517448), (8, 323405), (10, 258724), (20, 129362), (40, 64681), (71, 36440), (142, 18220), (284, 9110), (355, 7288), (568, 4555), (710, 3644), (911, 2840), (1420, 1822)]