978449180

素因数分解:

$2^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{98041}}^1$

素因数の和:98549

約数の個数: 24

約数和(自身を含む): 2058882000

約数和(自身を除く): 1080432820

約数列:

[1, 2, 4, 5, 10, 20, 499, 998, 1996, 2495, 4990, 9980, 98041, 196082, 392164, 490205, 980410, 1960820, 48922459, 97844918, 195689836, 244612295, 489224590, 978449180]

約数ペア:

[(1, 978449180), (2, 489224590), (4, 244612295), (5, 195689836), (10, 97844918), (20, 48922459), (499, 1960820), (998, 980410), (1996, 490205), (2495, 392164), (4990, 196082), (9980, 98041)]