55120040

素因数分解:

$2^3\times 5^1\times {\mathrm{1378001}}^1$

素因数の和:1378012

約数の個数: 16

約数和(自身を含む): 124020180

約数和(自身を除く): 68900140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1378001, 2756002, 5512004, 6890005, 11024008, 13780010, 27560020, 55120040]

約数ペア:

[(1, 55120040), (2, 27560020), (4, 13780010), (5, 11024008), (8, 6890005), (10, 5512004), (20, 2756002), (40, 1378001)]