20790028

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{39079}}^1$

素因数の和:39109

約数の個数: 24

約数和(自身を含む): 43769600

約数和(自身を除く): 22979572

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 39079, 78158, 156316, 273553, 547106, 742501, 1094212, 1485002, 2970004, 5197507, 10395014, 20790028]

約数ペア:

[(1, 20790028), (2, 10395014), (4, 5197507), (7, 2970004), (14, 1485002), (19, 1094212), (28, 742501), (38, 547106), (76, 273553), (133, 156316), (266, 78158), (532, 39079)]