20826160

素因数分解:

$2^4\times 5^1\times {\mathrm{439}}^1\times {\mathrm{593}}^1$

素因数の和:1045

約数の個数: 40

約数和(自身を含む): 48612960

約数和(自身を除く): 27786800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 439, 593, 878, 1186, 1756, 2195, 2372, 2965, 3512, 4390, 4744, 5930, 7024, 8780, 9488, 11860, 17560, 23720, 35120, 47440, 260327, 520654, 1041308, 1301635, 2082616, 2603270, 4165232, 5206540, 10413080, 20826160]

約数ペア:

[(1, 20826160), (2, 10413080), (4, 5206540), (5, 4165232), (8, 2603270), (10, 2082616), (16, 1301635), (20, 1041308), (40, 520654), (80, 260327), (439, 47440), (593, 35120), (878, 23720), (1186, 17560), (1756, 11860), (2195, 9488), (2372, 8780), (2965, 7024), (3512, 5930), (4390, 4744)]