90990430

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{478897}}^1$

素因数の和:478923

約数の個数: 16

約数和(自身を含む): 172403280

約数和(自身を除く): 81412850

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 478897, 957794, 2394485, 4788970, 9099043, 18198086, 45495215, 90990430]

約数ペア:

[(1, 90990430), (2, 45495215), (5, 18198086), (10, 9099043), (19, 4788970), (38, 2394485), (95, 957794), (190, 478897)]