81371950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{147949}}^1$

素因数の和:147972

約数の個数: 24

約数和(自身を含む): 165112200

約数和(自身を除く): 83740250

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 275, 550, 147949, 295898, 739745, 1479490, 1627439, 3254878, 3698725, 7397450, 8137195, 16274390, 40685975, 81371950]

約数ペア:

[(1, 81371950), (2, 40685975), (5, 16274390), (10, 8137195), (11, 7397450), (22, 3698725), (25, 3254878), (50, 1627439), (55, 1479490), (110, 739745), (275, 295898), (550, 147949)]