18379230920

素因数分解:

$2^3\times 5^1\times {\mathrm{459480773}}^1$

素因数の和:459480784

約数の個数: 16

約数和(自身を含む): 41353269660

約数和(自身を除く): 22974038740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 459480773, 918961546, 1837923092, 2297403865, 3675846184, 4594807730, 9189615460, 18379230920]

約数ペア:

[(1, 18379230920), (2, 9189615460), (4, 4594807730), (5, 3675846184), (8, 2297403865), (10, 1837923092), (20, 918961546), (40, 459480773)]