2019905800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{918139}}^1$

素因数の和:918166

約数の個数: 48

約数和(自身を含む): 5123221200

約数和(自身を除く): 3103315400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 918139, 1836278, 3672556, 4590695, 7345112, 9181390, 10099529, 18362780, 20199058, 22953475, 36725560, 40398116, 45906950, 50497645, 80796232, 91813900, 100995290, 183627800, 201990580, 252488225, 403981160, 504976450, 1009952900, 2019905800]

約数ペア:

[(1, 2019905800), (2, 1009952900), (4, 504976450), (5, 403981160), (8, 252488225), (10, 201990580), (11, 183627800), (20, 100995290), (22, 91813900), (25, 80796232), (40, 50497645), (44, 45906950), (50, 40398116), (55, 36725560), (88, 22953475), (100, 20199058), (110, 18362780), (200, 10099529), (220, 9181390), (275, 7345112), (440, 4590695), (550, 3672556), (1100, 1836278), (2200, 918139)]