20780244

素因数分解:

$2^2\times 3^2\times {\mathrm{443}}^1\times {\mathrm{1303}}^1$

素因数の和:1756

約数の個数: 36

約数和(自身を含む): 52686816

約数和(自身を除く): 31906572

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 443, 886, 1303, 1329, 1772, 2606, 2658, 3909, 3987, 5212, 5316, 7818, 7974, 11727, 15636, 15948, 23454, 46908, 577229, 1154458, 1731687, 2308916, 3463374, 5195061, 6926748, 10390122, 20780244]

約数ペア:

[(1, 20780244), (2, 10390122), (3, 6926748), (4, 5195061), (6, 3463374), (9, 2308916), (12, 1731687), (18, 1154458), (36, 577229), (443, 46908), (886, 23454), (1303, 15948), (1329, 15636), (1772, 11727), (2606, 7974), (2658, 7818), (3909, 5316), (3987, 5212)]