20149960

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3677}}^1$

素因数の和:3825

約数の個数: 32

約数和(自身を含む): 45680760

約数和(自身を除く): 25530800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 3677, 5480, 7354, 14708, 18385, 29416, 36770, 73540, 147080, 503749, 1007498, 2014996, 2518745, 4029992, 5037490, 10074980, 20149960]

約数ペア:

[(1, 20149960), (2, 10074980), (4, 5037490), (5, 4029992), (8, 2518745), (10, 2014996), (20, 1007498), (40, 503749), (137, 147080), (274, 73540), (548, 36770), (685, 29416), (1096, 18385), (1370, 14708), (2740, 7354), (3677, 5480)]