394744820

素因数分解:

$2^2\times 5^1\times {\mathrm{1709}}^1\times {\mathrm{11549}}^1$

素因数の和:13267

約数の個数: 24

約数和(自身を含む): 829521000

約数和(自身を除く): 434776180

約数列:

[1, 2, 4, 5, 10, 20, 1709, 3418, 6836, 8545, 11549, 17090, 23098, 34180, 46196, 57745, 115490, 230980, 19737241, 39474482, 78948964, 98686205, 197372410, 394744820]

約数ペア:

[(1, 394744820), (2, 197372410), (4, 98686205), (5, 78948964), (10, 39474482), (20, 19737241), (1709, 230980), (3418, 115490), (6836, 57745), (8545, 46196), (11549, 34180), (17090, 23098)]