20028968

素因数分解:

$2^3\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 38438400

約数和(自身を除く): 18409432

約数列:

[1, 2, 4, 8, 103, 109, 206, 218, 223, 412, 436, 446, 824, 872, 892, 1784, 11227, 22454, 22969, 24307, 44908, 45938, 48614, 89816, 91876, 97228, 183752, 194456, 2503621, 5007242, 10014484, 20028968]

約数ペア:

[(1, 20028968), (2, 10014484), (4, 5007242), (8, 2503621), (103, 194456), (109, 183752), (206, 97228), (218, 91876), (223, 89816), (412, 48614), (436, 45938), (446, 44908), (824, 24307), (872, 22969), (892, 22454), (1784, 11227)]