54281320

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{2053}}^1$

素因数の和:2725

約数の個数: 32

約数和(自身を含む): 122377320

約数和(自身を除く): 68096000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2053, 2644, 3305, 4106, 5288, 6610, 8212, 10265, 13220, 16424, 20530, 26440, 41060, 82120, 1357033, 2714066, 5428132, 6785165, 10856264, 13570330, 27140660, 54281320]

約数ペア:

[(1, 54281320), (2, 27140660), (4, 13570330), (5, 10856264), (8, 6785165), (10, 5428132), (20, 2714066), (40, 1357033), (661, 82120), (1322, 41060), (2053, 26440), (2644, 20530), (3305, 16424), (4106, 13220), (5288, 10265), (6610, 8212)]