55921880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{199721}}^1$

素因数の和:199739

約数の個数: 32

約数和(自身を含む): 143799840

約数和(自身を除く): 87877960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 199721, 399442, 798884, 998605, 1398047, 1597768, 1997210, 2796094, 3994420, 5592188, 6990235, 7988840, 11184376, 13980470, 27960940, 55921880]

約数ペア:

[(1, 55921880), (2, 27960940), (4, 13980470), (5, 11184376), (7, 7988840), (8, 6990235), (10, 5592188), (14, 3994420), (20, 2796094), (28, 1997210), (35, 1597768), (40, 1398047), (56, 998605), (70, 798884), (140, 399442), (280, 199721)]