39936220

素因数分解:

$2^2\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1979}}^1$

素因数の和:2997

約数の個数: 24

約数和(自身を含む): 83991600

約数和(自身を除く): 44055380

約数列:

[1, 2, 4, 5, 10, 20, 1009, 1979, 2018, 3958, 4036, 5045, 7916, 9895, 10090, 19790, 20180, 39580, 1996811, 3993622, 7987244, 9984055, 19968110, 39936220]

約数ペア:

[(1, 39936220), (2, 19968110), (4, 9984055), (5, 7987244), (10, 3993622), (20, 1996811), (1009, 39580), (1979, 20180), (2018, 19790), (3958, 10090), (4036, 9895), (5045, 7916)]