20080970020

素因数分解:

$2^2\times 5^1\times {\mathrm{1004048501}}^1$

素因数の和:1004048510

約数の個数: 12

約数和(自身を含む): 42170037084

約数和(自身を除く): 22089067064

約数列:

[1, 2, 4, 5, 10, 20, 1004048501, 2008097002, 4016194004, 5020242505, 10040485010, 20080970020]

約数ペア:

[(1, 20080970020), (2, 10040485010), (4, 5020242505), (5, 4016194004), (10, 2008097002), (20, 1004048501)]