20179958020

素因数分解:

$2^2\times 5^1\times {\mathrm{1008997901}}^1$

素因数の和:1008997910

約数の個数: 12

約数和(自身を含む): 42377911884

約数和(自身を除く): 22197953864

約数列:

[1, 2, 4, 5, 10, 20, 1008997901, 2017995802, 4035991604, 5044989505, 10089979010, 20179958020]

約数ペア:

[(1, 20179958020), (2, 10089979010), (4, 5044989505), (5, 4035991604), (10, 2017995802), (20, 1008997901)]