53557520

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1721}}^1$

素因数の和:2123

約数の個数: 40

約数和(自身を含む): 124913880

約数和(自身を除く): 71356360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1556, 1721, 1945, 3112, 3442, 3890, 6224, 6884, 7780, 8605, 13768, 15560, 17210, 27536, 31120, 34420, 68840, 137680, 669469, 1338938, 2677876, 3347345, 5355752, 6694690, 10711504, 13389380, 26778760, 53557520]

約数ペア:

[(1, 53557520), (2, 26778760), (4, 13389380), (5, 10711504), (8, 6694690), (10, 5355752), (16, 3347345), (20, 2677876), (40, 1338938), (80, 669469), (389, 137680), (778, 68840), (1556, 34420), (1721, 31120), (1945, 27536), (3112, 17210), (3442, 15560), (3890, 13768), (6224, 8605), (6884, 7780)]