20882860

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{13217}}^1$

素因数の和:13305

約数の個数: 24

約数和(自身を含む): 44412480

約数和(自身を除く): 23529620

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 13217, 26434, 52868, 66085, 132170, 264340, 1044143, 2088286, 4176572, 5220715, 10441430, 20882860]

約数ペア:

[(1, 20882860), (2, 10441430), (4, 5220715), (5, 4176572), (10, 2088286), (20, 1044143), (79, 264340), (158, 132170), (316, 66085), (395, 52868), (790, 26434), (1580, 13217)]