200019640

素因数分解:

$2^3\times 5^1\times {\mathrm{5000491}}^1$

素因数の和:5000502

約数の個数: 16

約数和(自身を含む): 450044280

約数和(自身を除く): 250024640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5000491, 10000982, 20001964, 25002455, 40003928, 50004910, 100009820, 200019640]

約数ペア:

[(1, 200019640), (2, 100009820), (4, 50004910), (5, 40003928), (8, 25002455), (10, 20001964), (20, 10000982), (40, 5000491)]