2017880020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7761077}}^1$

素因数の和:7761099

約数の個数: 24

約数和(自身を含む): 4563513864

約数和(自身を除く): 2545633844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 7761077, 15522154, 31044308, 38805385, 77610770, 100894001, 155221540, 201788002, 403576004, 504470005, 1008940010, 2017880020]

約数ペア:

[(1, 2017880020), (2, 1008940010), (4, 504470005), (5, 403576004), (10, 201788002), (13, 155221540), (20, 100894001), (26, 77610770), (52, 38805385), (65, 31044308), (130, 15522154), (260, 7761077)]