20408060560

素因数分解:

$2^4\times 5^1\times {\mathrm{255100757}}^1$

素因数の和:255100770

約数の個数: 20

約数和(自身を含む): 47448740988

約数和(自身を除く): 27040680428

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 255100757, 510201514, 1020403028, 1275503785, 2040806056, 2551007570, 4081612112, 5102015140, 10204030280, 20408060560]

約数ペア:

[(1, 20408060560), (2, 10204030280), (4, 5102015140), (5, 4081612112), (8, 2551007570), (10, 2040806056), (16, 1275503785), (20, 1020403028), (40, 510201514), (80, 255100757)]