20178040

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{10733}}^1$

素因数の和:10791

約数の個数: 32

約数和(自身を含む): 46370880

約数和(自身を除く): 26192840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 10733, 21466, 42932, 53665, 85864, 107330, 214660, 429320, 504451, 1008902, 2017804, 2522255, 4035608, 5044510, 10089020, 20178040]

約数ペア:

[(1, 20178040), (2, 10089020), (4, 5044510), (5, 4035608), (8, 2522255), (10, 2017804), (20, 1008902), (40, 504451), (47, 429320), (94, 214660), (188, 107330), (235, 85864), (376, 53665), (470, 42932), (940, 21466), (1880, 10733)]