20343700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15649}}^1$

素因数の和:15676

約数の個数: 36

約数和(自身を含む): 47544700

約数和(自身を除く): 27201000

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 15649, 31298, 62596, 78245, 156490, 203437, 312980, 391225, 406874, 782450, 813748, 1017185, 1564900, 2034370, 4068740, 5085925, 10171850, 20343700]

約数ペア:

[(1, 20343700), (2, 10171850), (4, 5085925), (5, 4068740), (10, 2034370), (13, 1564900), (20, 1017185), (25, 813748), (26, 782450), (50, 406874), (52, 391225), (65, 312980), (100, 203437), (130, 156490), (260, 78245), (325, 62596), (650, 31298), (1300, 15649)]