19810630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{283009}}^1$

素因数の和:283023

約数の個数: 16

約数和(自身を含む): 40753440

約数和(自身を除く): 20942810

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 283009, 566018, 1415045, 1981063, 2830090, 3962126, 9905315, 19810630]

約数ペア:

[(1, 19810630), (2, 9905315), (5, 3962126), (7, 2830090), (10, 1981063), (14, 1415045), (35, 566018), (70, 283009)]