838820440

素因数分解:

$2^3\times 5^1\times {\mathrm{20970511}}^1$

素因数の和:20970522

約数の個数: 16

約数和(自身を含む): 1887346080

約数和(自身を除く): 1048525640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 20970511, 41941022, 83882044, 104852555, 167764088, 209705110, 419410220, 838820440]

約数ペア:

[(1, 838820440), (2, 419410220), (4, 209705110), (5, 167764088), (8, 104852555), (10, 83882044), (20, 41941022), (40, 20970511)]