8158180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{9949}}^1$

素因数の和:9999

約数の個数: 24

約数和(自身を含む): 17551800

約数和(自身を除く): 9393620

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 9949, 19898, 39796, 49745, 99490, 198980, 407909, 815818, 1631636, 2039545, 4079090, 8158180]

約数ペア:

[(1, 8158180), (2, 4079090), (4, 2039545), (5, 1631636), (10, 815818), (20, 407909), (41, 198980), (82, 99490), (164, 49745), (205, 39796), (410, 19898), (820, 9949)]