200239640

素因数分解:

$2^3\times 5^1\times {\mathrm{5005991}}^1$

素因数の和:5006002

約数の個数: 16

約数和(自身を含む): 450539280

約数和(自身を除く): 250299640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5005991, 10011982, 20023964, 25029955, 40047928, 50059910, 100119820, 200239640]

約数ペア:

[(1, 200239640), (2, 100119820), (4, 50059910), (5, 40047928), (8, 25029955), (10, 20023964), (20, 10011982), (40, 5005991)]