204422440

素因数分解:

$2^3\times 5^1\times {\mathrm{5110561}}^1$

素因数の和:5110572

約数の個数: 16

約数和(自身を含む): 459950580

約数和(自身を除く): 255528140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5110561, 10221122, 20442244, 25552805, 40884488, 51105610, 102211220, 204422440]

約数ペア:

[(1, 204422440), (2, 102211220), (4, 51105610), (5, 40884488), (8, 25552805), (10, 20442244), (20, 10221122), (40, 5110561)]