20404816

素因数分解:

$2^4\times {\mathrm{229}}^1\times {\mathrm{5569}}^1$

素因数の和:5806

約数の個数: 20

約数和(自身を含む): 39714100

約数和(自身を除く): 19309284

約数列:

[1, 2, 4, 8, 16, 229, 458, 916, 1832, 3664, 5569, 11138, 22276, 44552, 89104, 1275301, 2550602, 5101204, 10202408, 20404816]

約数ペア:

[(1, 20404816), (2, 10202408), (4, 5101204), (8, 2550602), (16, 1275301), (229, 89104), (458, 44552), (916, 22276), (1832, 11138), (3664, 5569)]