38989900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{20521}}^1$

素因数の和:20554

約数の個数: 36

約数和(自身を含む): 89065480

約数和(自身を除く): 50075580

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 20521, 41042, 82084, 102605, 205210, 389899, 410420, 513025, 779798, 1026050, 1559596, 1949495, 2052100, 3898990, 7797980, 9747475, 19494950, 38989900]

約数ペア:

[(1, 38989900), (2, 19494950), (4, 9747475), (5, 7797980), (10, 3898990), (19, 2052100), (20, 1949495), (25, 1559596), (38, 1026050), (50, 779798), (76, 513025), (95, 410420), (100, 389899), (190, 205210), (380, 102605), (475, 82084), (950, 41042), (1900, 20521)]