208179640

素因数分解:

$2^3\times 5^1\times {\mathrm{5204491}}^1$

素因数の和:5204502

約数の個数: 16

約数和(自身を含む): 468404280

約数和(自身を除く): 260224640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5204491, 10408982, 20817964, 26022455, 41635928, 52044910, 104089820, 208179640]

約数ペア:

[(1, 208179640), (2, 104089820), (4, 52044910), (5, 41635928), (8, 26022455), (10, 20817964), (20, 10408982), (40, 5204491)]