87642940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{56911}}^1$

素因数の和:56938

約数の個数: 48

約数和(自身を含む): 229469184

約数和(自身を除く): 141826244

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, 56911, 113822, 227644, 284555, 398377, 569110, 626021, 796754, 1138220, 1252042, 1593508, 1991885, 2504084, 3130105, 3983770, 4382147, 6260210, 7967540, 8764294, 12520420, 17528588, 21910735, 43821470, 87642940]

約数ペア:

[(1, 87642940), (2, 43821470), (4, 21910735), (5, 17528588), (7, 12520420), (10, 8764294), (11, 7967540), (14, 6260210), (20, 4382147), (22, 3983770), (28, 3130105), (35, 2504084), (44, 1991885), (55, 1593508), (70, 1252042), (77, 1138220), (110, 796754), (140, 626021), (154, 569110), (220, 398377), (308, 284555), (385, 227644), (770, 113822), (1540, 56911)]