20728110

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53149}}^1$

素因数の和:53172

約数の個数: 32

約数和(自身を含む): 53575200

約数和(自身を除く): 32847090

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 53149, 106298, 159447, 265745, 318894, 531490, 690937, 797235, 1381874, 1594470, 2072811, 3454685, 4145622, 6909370, 10364055, 20728110]

約数ペア:

[(1, 20728110), (2, 10364055), (3, 6909370), (5, 4145622), (6, 3454685), (10, 2072811), (13, 1594470), (15, 1381874), (26, 797235), (30, 690937), (39, 531490), (65, 318894), (78, 265745), (130, 159447), (195, 106298), (390, 53149)]