1980497788

素因数分解:

$2^2\times {\mathrm{223}}^1\times {\mathrm{2220289}}^1$

素因数の和:2220516

約数の個数: 12

約数和(自身を含む): 3481414720

約数和(自身を除く): 1500916932

約数列:

[1, 2, 4, 223, 446, 892, 2220289, 4440578, 8881156, 495124447, 990248894, 1980497788]

約数ペア:

[(1, 1980497788), (2, 990248894), (4, 495124447), (223, 8881156), (446, 4440578), (892, 2220289)]