20162740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77549}}^1$

素因数の和:77571

約数の個数: 24

約数和(自身を含む): 45599400

約数和(自身を除く): 25436660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77549, 155098, 310196, 387745, 775490, 1008137, 1550980, 2016274, 4032548, 5040685, 10081370, 20162740]

約数ペア:

[(1, 20162740), (2, 10081370), (4, 5040685), (5, 4032548), (10, 2016274), (13, 1550980), (20, 1008137), (26, 775490), (52, 387745), (65, 310196), (130, 155098), (260, 77549)]