4991180

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{521}}^1$

素因数の和:1009

約数の個数: 24

約数和(自身を含む): 10523520

約数和(自身を除く): 5532340

約数列:

[1, 2, 4, 5, 10, 20, 479, 521, 958, 1042, 1916, 2084, 2395, 2605, 4790, 5210, 9580, 10420, 249559, 499118, 998236, 1247795, 2495590, 4991180]

約数ペア:

[(1, 4991180), (2, 2495590), (4, 1247795), (5, 998236), (10, 499118), (20, 249559), (479, 10420), (521, 9580), (958, 5210), (1042, 4790), (1916, 2605), (2084, 2395)]