20383856

素因数分解:

$2^4\times {\mathrm{569}}^1\times {\mathrm{2239}}^1$

素因数の和:2816

約数の個数: 20

約数和(自身を含む): 39580800

約数和(自身を除く): 19196944

約数列:

[1, 2, 4, 8, 16, 569, 1138, 2239, 2276, 4478, 4552, 8956, 9104, 17912, 35824, 1273991, 2547982, 5095964, 10191928, 20383856]

約数ペア:

[(1, 20383856), (2, 10191928), (4, 5095964), (8, 2547982), (16, 1273991), (569, 35824), (1138, 17912), (2239, 9104), (2276, 8956), (4478, 4552)]