199967660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{243863}}^1$

素因数の和:243913

約数の個数: 24

約数和(自身を含む): 430176096

約数和(自身を除く): 230208436

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 243863, 487726, 975452, 1219315, 2438630, 4877260, 9998383, 19996766, 39993532, 49991915, 99983830, 199967660]

約数ペア:

[(1, 199967660), (2, 99983830), (4, 49991915), (5, 39993532), (10, 19996766), (20, 9998383), (41, 4877260), (82, 2438630), (164, 1219315), (205, 975452), (410, 487726), (820, 243863)]