20640860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{24001}}^1$

素因数の和:24053

約数の個数: 24

約数和(自身を含む): 44355696

約数和(自身を除く): 23714836

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 24001, 48002, 96004, 120005, 240010, 480020, 1032043, 2064086, 4128172, 5160215, 10320430, 20640860]

約数ペア:

[(1, 20640860), (2, 10320430), (4, 5160215), (5, 4128172), (10, 2064086), (20, 1032043), (43, 480020), (86, 240010), (172, 120005), (215, 96004), (430, 48002), (860, 24001)]