20367580

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{4261}}^1$

素因数の和:4509

約数の個数: 24

約数和(自身を含む): 42960960

約数和(自身を除く): 22593380

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4261, 4780, 8522, 17044, 21305, 42610, 85220, 1018379, 2036758, 4073516, 5091895, 10183790, 20367580]

約数ペア:

[(1, 20367580), (2, 10183790), (4, 5091895), (5, 4073516), (10, 2036758), (20, 1018379), (239, 85220), (478, 42610), (956, 21305), (1195, 17044), (2390, 8522), (4261, 4780)]