204740440

素因数分解:

$2^3\times 5^1\times {\mathrm{619}}^1\times {\mathrm{8269}}^1$

素因数の和:8899

約数の個数: 32

約数和(自身を含む): 461466000

約数和(自身を除く): 256725560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 619, 1238, 2476, 3095, 4952, 6190, 8269, 12380, 16538, 24760, 33076, 41345, 66152, 82690, 165380, 330760, 5118511, 10237022, 20474044, 25592555, 40948088, 51185110, 102370220, 204740440]

約数ペア:

[(1, 204740440), (2, 102370220), (4, 51185110), (5, 40948088), (8, 25592555), (10, 20474044), (20, 10237022), (40, 5118511), (619, 330760), (1238, 165380), (2476, 82690), (3095, 66152), (4952, 41345), (6190, 33076), (8269, 24760), (12380, 16538)]