56752840

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{3469}}^1$

素因数の和:3889

約数の個数: 32

約数和(自身を含む): 128043000

約数和(自身を除く): 71290160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 3272, 3469, 4090, 6938, 8180, 13876, 16360, 17345, 27752, 34690, 69380, 138760, 1418821, 2837642, 5675284, 7094105, 11350568, 14188210, 28376420, 56752840]

約数ペア:

[(1, 56752840), (2, 28376420), (4, 14188210), (5, 11350568), (8, 7094105), (10, 5675284), (20, 2837642), (40, 1418821), (409, 138760), (818, 69380), (1636, 34690), (2045, 27752), (3272, 17345), (3469, 16360), (4090, 13876), (6938, 8180)]