64991180

素因数分解:

$2^2\times 5^1\times {\mathrm{569}}^1\times {\mathrm{5711}}^1$

素因数の和:6289

約数の個数: 24

約数和(自身を含む): 136745280

約数和(自身を除く): 71754100

約数列:

[1, 2, 4, 5, 10, 20, 569, 1138, 2276, 2845, 5690, 5711, 11380, 11422, 22844, 28555, 57110, 114220, 3249559, 6499118, 12998236, 16247795, 32495590, 64991180]

約数ペア:

[(1, 64991180), (2, 32495590), (4, 16247795), (5, 12998236), (10, 6499118), (20, 3249559), (569, 114220), (1138, 57110), (2276, 28555), (2845, 22844), (5690, 11422), (5711, 11380)]