8889764020

素因数分解:

$2^2\times 5^1\times {\mathrm{444488201}}^1$

素因数の和:444488210

約数の個数: 12

約数和(自身を含む): 18668504484

約数和(自身を除く): 9778740464

約数列:

[1, 2, 4, 5, 10, 20, 444488201, 888976402, 1777952804, 2222441005, 4444882010, 8889764020]

約数ペア:

[(1, 8889764020), (2, 4444882010), (4, 2222441005), (5, 1777952804), (10, 888976402), (20, 444488201)]