1818378040

素因数分解:

$2^3\times 5^1\times {\mathrm{45459451}}^1$

素因数の和:45459462

約数の個数: 16

約数和(自身を含む): 4091350680

約数和(自身を除く): 2272972640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 45459451, 90918902, 181837804, 227297255, 363675608, 454594510, 909189020, 1818378040]

約数ペア:

[(1, 1818378040), (2, 909189020), (4, 454594510), (5, 363675608), (8, 227297255), (10, 181837804), (20, 90918902), (40, 45459451)]