20348000

素因数分解:

$2^5\times 5^3\times {\mathrm{5087}}^1$

素因数の和:5112

約数の個数: 48

約数和(自身を含む): 50004864

約数和(自身を除く): 29656864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 5087, 10174, 20348, 25435, 40696, 50870, 81392, 101740, 127175, 162784, 203480, 254350, 406960, 508700, 635875, 813920, 1017400, 1271750, 2034800, 2543500, 4069600, 5087000, 10174000, 20348000]

約数ペア:

[(1, 20348000), (2, 10174000), (4, 5087000), (5, 4069600), (8, 2543500), (10, 2034800), (16, 1271750), (20, 1017400), (25, 813920), (32, 635875), (40, 508700), (50, 406960), (80, 254350), (100, 203480), (125, 162784), (160, 127175), (200, 101740), (250, 81392), (400, 50870), (500, 40696), (800, 25435), (1000, 20348), (2000, 10174), (4000, 5087)]