9979820

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{2179}}^1$

素因数の和:2417

約数の個数: 24

約数和(自身を含む): 21058800

約数和(自身を除く): 11078980

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2179, 2290, 4358, 4580, 8716, 10895, 21790, 43580, 498991, 997982, 1995964, 2494955, 4989910, 9979820]

約数ペア:

[(1, 9979820), (2, 4989910), (4, 2494955), (5, 1995964), (10, 997982), (20, 498991), (229, 43580), (458, 21790), (916, 10895), (1145, 8716), (2179, 4580), (2290, 4358)]