20930140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13591}}^1$

素因数の和:13618

約数の個数: 48

約数和(自身を含む): 54802944

約数和(自身を除く): 33872804

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, 13591, 27182, 54364, 67955, 95137, 135910, 149501, 190274, 271820, 299002, 380548, 475685, 598004, 747505, 951370, 1046507, 1495010, 1902740, 2093014, 2990020, 4186028, 5232535, 10465070, 20930140]

約数ペア:

[(1, 20930140), (2, 10465070), (4, 5232535), (5, 4186028), (7, 2990020), (10, 2093014), (11, 1902740), (14, 1495010), (20, 1046507), (22, 951370), (28, 747505), (35, 598004), (44, 475685), (55, 380548), (70, 299002), (77, 271820), (110, 190274), (140, 149501), (154, 135910), (220, 95137), (308, 67955), (385, 54364), (770, 27182), (1540, 13591)]