618366980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{401537}}^1$

素因数の和:401564

約数の個数: 48

約数和(自身を含む): 1619001216

約数和(自身を除く): 1000634236

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 401537, 803074, 1606148, 2007685, 2810759, 4015370, 4416907, 5621518, 8030740, 8833814, 11243036, 14053795, 17667628, 22084535, 28107590, 30918349, 44169070, 56215180, 61836698, 88338140, 123673396, 154591745, 309183490, 618366980]

約数ペア:

[(1, 618366980), (2, 309183490), (4, 154591745), (5, 123673396), (7, 88338140), (10, 61836698), (11, 56215180), (14, 44169070), (20, 30918349), (22, 28107590), (28, 22084535), (35, 17667628), (44, 14053795), (55, 11243036), (70, 8833814), (77, 8030740), (110, 5621518), (140, 4416907), (154, 4015370), (220, 2810759), (308, 2007685), (385, 1606148), (770, 803074), (1540, 401537)]