408088180

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{30869}}^1$

素因数の和:31539

約数の個数: 24

約数和(自身を含む): 858309480

約数和(自身を除く): 450221300

約数列:

[1, 2, 4, 5, 10, 20, 661, 1322, 2644, 3305, 6610, 13220, 30869, 61738, 123476, 154345, 308690, 617380, 20404409, 40808818, 81617636, 102022045, 204044090, 408088180]

約数ペア:

[(1, 408088180), (2, 204044090), (4, 102022045), (5, 81617636), (10, 40808818), (20, 20404409), (661, 617380), (1322, 308690), (2644, 154345), (3305, 123476), (6610, 61738), (13220, 30869)]