27128980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15241}}^1$

素因数の和:15339

約数の個数: 24

約数和(自身を含む): 57614760

約数和(自身を除く): 30485780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 15241, 30482, 60964, 76205, 152410, 304820, 1356449, 2712898, 5425796, 6782245, 13564490, 27128980]

約数ペア:

[(1, 27128980), (2, 13564490), (4, 6782245), (5, 5425796), (10, 2712898), (20, 1356449), (89, 304820), (178, 152410), (356, 76205), (445, 60964), (890, 30482), (1780, 15241)]