208041520

素因数分解:

$2^4\times 5^1\times {\mathrm{2600519}}^1$

素因数の和:2600532

約数の個数: 20

約数和(自身を含む): 483696720

約数和(自身を除く): 275655200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2600519, 5201038, 10402076, 13002595, 20804152, 26005190, 41608304, 52010380, 104020760, 208041520]

約数ペア:

[(1, 208041520), (2, 104020760), (4, 52010380), (5, 41608304), (8, 26005190), (10, 20804152), (16, 13002595), (20, 10402076), (40, 5201038), (80, 2600519)]