20693140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79589}}^1$

素因数の和:79611

約数の個数: 24

約数和(自身を含む): 46798920

約数和(自身を除く): 26105780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 79589, 159178, 318356, 397945, 795890, 1034657, 1591780, 2069314, 4138628, 5173285, 10346570, 20693140]

約数ペア:

[(1, 20693140), (2, 10346570), (4, 5173285), (5, 4138628), (10, 2069314), (13, 1591780), (20, 1034657), (26, 795890), (52, 397945), (65, 318356), (130, 159178), (260, 79589)]