18848420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10589}}^1$

素因数の和:10687

約数の個数: 24

約数和(自身を含む): 40030200

約数和(自身を除く): 21181780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 10589, 21178, 42356, 52945, 105890, 211780, 942421, 1884842, 3769684, 4712105, 9424210, 18848420]

約数ペア:

[(1, 18848420), (2, 9424210), (4, 4712105), (5, 3769684), (10, 1884842), (20, 942421), (89, 211780), (178, 105890), (356, 52945), (445, 42356), (890, 21178), (1780, 10589)]