20682740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79549}}^1$

素因数の和:79571

約数の個数: 24

約数和(自身を含む): 46775400

約数和(自身を除く): 26092660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 79549, 159098, 318196, 397745, 795490, 1034137, 1590980, 2068274, 4136548, 5170685, 10341370, 20682740]

約数ペア:

[(1, 20682740), (2, 10341370), (4, 5170685), (5, 4136548), (10, 2068274), (13, 1590980), (20, 1034137), (26, 795490), (52, 397745), (65, 318196), (130, 159098), (260, 79549)]