38720020

素因数分解:

$2^2\times 5^1\times {\mathrm{727}}^1\times {\mathrm{2663}}^1$

素因数の和:3399

約数の個数: 24

約数和(自身を含む): 81454464

約数和(自身を除く): 42734444

約数列:

[1, 2, 4, 5, 10, 20, 727, 1454, 2663, 2908, 3635, 5326, 7270, 10652, 13315, 14540, 26630, 53260, 1936001, 3872002, 7744004, 9680005, 19360010, 38720020]

約数ペア:

[(1, 38720020), (2, 19360010), (4, 9680005), (5, 7744004), (10, 3872002), (20, 1936001), (727, 53260), (1454, 26630), (2663, 14540), (2908, 13315), (3635, 10652), (5326, 7270)]