51090800

素因数分解:

$2^4\times 5^2\times {\mathrm{127727}}^1$

素因数の和:127745

約数の個数: 30

約数和(自身を含む): 122746608

約数和(自身を除く): 71655808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 127727, 255454, 510908, 638635, 1021816, 1277270, 2043632, 2554540, 3193175, 5109080, 6386350, 10218160, 12772700, 25545400, 51090800]

約数ペア:

[(1, 51090800), (2, 25545400), (4, 12772700), (5, 10218160), (8, 6386350), (10, 5109080), (16, 3193175), (20, 2554540), (25, 2043632), (40, 1277270), (50, 1021816), (80, 638635), (100, 510908), (200, 255454), (400, 127727)]